Vauxhall Astra GTC, 2012

 

 

 

 Vauxhall Astra GTC, 2012

Since the Vauxhall Astra GTC shares no body panels with either the Astra Hatch or Sports Tourer, it has a unique appearance in the range, and one which has largely stayed faithful to the stunning 2010 GTC Paris concept.

"We wanted the Astra GTC to be the ultimate expression of Vauxhall's design language, and to embody our passion for the motor car," said Mark Adams, Vice President of Vauxhall/Opel design. "But we didn't want emotion to get in the way of functionality: the Astra GTC still needed to be clever, practical and affordable."

In profile, Mark and his team - a significant number of whom are fellow Brits - created tension in the GTC's shape by minimising the lines running along the body. Vauxhall's signature 'blade', a crisp line that sweeps up from the rocker at the front of the door, is now similar to the Insignia's, but runs the opposite way to other Astras. A second line strikes through the door handle, stretching to the rear, while a third line follows the roof's profile, guiding the eye to the sharply integrated spoiler.

At the front of the car, a centreline crease is complemented by slim, 'eagle-eye'-style headlamps featuring wing-shaped daytime running light graphics. A chrome emblem bar running across the dramatic trapezoidal grille - mounted lower than on other Astras - completes the picture from the front.

Equally dramatic is the GTC's rear treatment. Its powerful shoulder section gives the car imposing proportions and a purposeful road presence. The line from the C-pillar wraps around the tail and the rear spoiler, which in turn integrates with the roofline. LED rear lighting - optional across the GTC range - highlights the stretched 'wing' motif created by the tail lamps.

The Vauxhall Astra GTC has a Cd figure of just 0.33.
Standard on both Sport and SRi trims are 18-inch alloy wheels, with each getting a unique design. For the first time on a Vauxhall coupe in this class, 20-inch rims are available as an option on SRi models, with 19-inch wheels a further cost option on both trims.

On the upper-spec SRi model, tinted glass is standard, while the latest generation AFL (Adaptive Forward Lighting) is optional across the GTC range.

Interior
Despite the GTC's rakish exterior appearance, unlike many of its competitors, interior accommodation and functionality have not been compromised.

Not only can the GTC accommodate five adults, but its luggage compartment provides between 380 and 1165 litres of volume - over 200 litres more than some of the competition.

In line with the current Astra, storage volume in the cabin has also been improved by 50 per cent versus the old Sport Hatch, with items like the electronic park brake liberating space around the console in SRi models.

High quality materials feature in all GTCs, as do chrome-edged instruments in deep-set binnacles that give drivers clear and well laid-out information. Standard on all GTCs are DAB stereo and USB functionality, while SRi drivers get an onboard computer and leather-rimmed steering wheel, among many other standard items.

Two new colours - Seashell and Flaming Yellow - and a selection of new materials, bespoke to the GTC, set the car apart from others in the Astra range. Morello Red, and a new premium leather trim, is also available as an option and brings with it a six-way adjustable driver's seat.

CHASSIS
The Vauxhall Astra GTC's appeal runs far deeper than its rakish lines. Unlike many three-door versions of existing compact hatches, the GTC - like the Astra Sports Hatch before it - will be a standalone model in Vauxhall's range, conceived to resonate with a more driver- oriented customer base who value the way a car handles and performs as much as the way it looks.

To do this, engineers from both Vauxhall Engineering Centre at Millbrook and Opel in Rüsselsheim have developed a bespoke platform for the GTC. Key components - such as the HiPerStruts used on the front axle - have been derived from the 325PS Insignia VXR, while significant upgrades have been made to the GTC's unique Watt's link/compound crank rear end. So while the GTC line-up currently includes a broad range of engines producing from 120 to 180PS, drivers can always be assured of class-leading levels of dynamic control.

But the best chassis can only be honed through intense testing on the most demanding surfaces. Britain will be by far the biggest market for the GTC, which is why Vauxhall and Opel engineers have conducted much of their evaluation on UK roads, with their unique (and some may say diabolical) blend of undulations, cambers, rough surfaces, blind apexes and crests. The theory is this: if the GTC can work well in the UK, it will work much more effectively on other markets' roads, too.

High tech front suspension boosts GTC's appeal
From the start of the GTC's development programme the target was to deliver a driver-oriented feel to the car, and one that worked well on UK roads. "Our aim was to exceed the best in class with the GTC's dynamics," said Gerry Baker, Vauxhall Engineering Centre's chief dynamicist. "We also wanted to change the emphasis in steering and damper-feel from the regular Astra Hatch to a set-up that was more focused, yet still comfortable enough for British roads and drivers."

Much of the development centered around the introduction to the GTC of Vauxhall's HiPerStrut, a first for an Astra model. Based on the system currently seen on the 325PS Insignia VXR, the HiPerStrut uses the Astra's existing pick-up points, but reduces the kingpin inclination angle by 44 per cent and shortens the spindle length (kingpin offset) by 46 per cent versus the MacPherson strut-equipped models. This helps prevent torquesteer - a trait of many powerful front-wheel-drive cars - allowing drivers to make more use of the GTC's performance without the steering being corrupted.

Adding the HiPerStrut has also reduced the amount of camber change on the GTC's front wheels during cornering, improving grip. Steering feel is enhanced, too, helped by a reduction the steering system's friction levels. The geometry changes brought by the HiPerStruts also mean that the GTC can be fitted with wheels of up to 20-inches in diameter.

Rear suspension revisions complement GTC's ride-height & track changes
Compared with the Astra Hatch, the GTC's ride height has been lowered by 15mm, while the wheelbase has grown by 10mm, from 2685mm to 2695mm. Both tracks are wider, too, at 1584mm (+40mm) front and 1585mm (+30mm) rear.

The Astra's GTC compound crank/Watt's link rear suspension system has also been revised, with bespoke roll-stiffness and roll-centre height settings for this application. The system has many advantages over a modern multi-link design, including improved packaging, greater wheel camber stiffness and reduced suspension friction. The Watt's link also ensures that lateral stability is maintained at all times.

The Watt's link is carried on a small cross-member attached to the underside of the car, just behind the rear wheel centre line. It comprises a short, pivoting centre link with a ball joint at each end, to which the lateral links from the wheels are bolted.

In a straight line, the set up ensures excellent stability, but during cornering it minimises lateral deflection in the same way a modern multi-link system would do. Vauxhall's engineers estimate that the linkage absorbs around 80 per cent of all lateral loadings on the rear suspension. In addition, the Watt's link allows for softer bushings, which no longer have to compensate for toe changes at the rear of the car, and thus provide greater compliance and ride comfort from the rear axle.

Unique steering programme for UK drivers
Precision, Feedback & Confidence. These were the three target elements for the GTC's UK-specific steering programme. The challenge was to maintain the system's ease of use at lower speeds, but dial in a greater degree of involvement and slightly more effort at higher speeds.

The Vauxhall Astra GTC uses a rack and pinion steering system with speed sensitive assistance. But in order to provide drivers with more steering feedback, the system's electric motor is mounted directly on the steering rack, as opposed to the base of the steering column.

The key benefits of using an electric power steering (EPS) are well known. At low speeds, the level of power assistance is increased to minimise steering effort. At higher speeds, assistance is automatically reduced to ensure a high degree of steering feel for the driver. The second important benefit is that, because it does not require an energy consuming hydraulic pump and responds directly to the amount of power needed at any speed, fuel consumption is also reduced.

FlexRide enhances GTC's driver appeal still further
FlexRide, Vauxhall's adaptive damping system, will be available as a £790 option across the GTC range, complementing the significant revisions to the new model's chassis. FlexRide automatically adapts to prevailing road surfaces and driving styles, providing drivers with fully optimised handling, even in the event of an emergency situation.

At the heart of FlexRide is the Driving Mode Control (DMC) which oversees and executes the system's settings, allowing the car to react to sudden changes in driving style or emergency situations. For example, if the driver needs to avoid an obstacle while in 'Tour' mode - the softest of the three settings - chassis sensors convey this to the DMC and the dampers are adjusted in a split second.

Standard mode (the default setting) reacts in the same way as Tour, but when drivers select Sport they not only get stiffer dampers, but more steering effort, sharper throttle response and an instrument panel that's back-lit in red, rather than white. Each of these settings can be dialled in or out of Sport mode via the GTC's configurator.

British roads: the ultimate challenge for dynamicists!
Vauxhall and Opel engineers are making increasing use of British roads as a key part of their overall chassis development programmes. In the last three years, the Insignia, Astra, Astra Sports Tourer, Meriva, and now the Vauxhall Astra GTC, have all benefited from the UK's unique mix of road surfaces.

1.4-litre Turbo
Strong performance and flexibility are the core strengths of this engine, which is available with either 120PS or 140PS power outputs. Torque generation is even more impressive, with 200Nm available in both engines from just 1,850rpm to 4,900rpm, translating to a 0-60mph acceleration time of 9.0 seconds (140PS) or 10.2 seconds (120PS).

The water-cooled turbocharger, spinning at up to 200,000 rpm, is integrated into the exhaust manifold, close to the engine, for a fast throttle response. Air-to-air intercooling increases the intake charge density.

The adoption of a steel crankshaft with reinforced pistons and con-rods allows the use of a relatively high 9.5: 1 compression ratio, despite higher stresses and loads. Under-skirt piston oil cooling jets and exhaust valves filled with sodium are further measures to ensure durability under higher internal temperatures.

All 1.4 Turbo models come equipped as standard with Start/Stop, helping them achieve competitively low emissions of between 140-142g/km, depending upon wheels/tyres fitted.

1.6-litre Turbo
The most powerful engine in the Vauxhall Astra GTC's line-up produces 180PS and achieves a specific output of just over 100PS per litre. Available across the range, the 1.6 Turbo is the most powerful series production engine in its displacement class.

Its high power is matched by an impressively wide plateau of torque, with 230Nm available from 2,200rpm to 5,400rpm. With this engine, the GTC can accelerate from 0-60mph in 7.8 seconds, and on to a top speed of 137mph.

The 1.6T's cylinder barrels are laser-etched for minimal piston friction. To withstand higher operating temperatures, the exhaust valves are filled with sodium and under-skirt piston cooling with oil jets is used. A map-based thermostat control raises the coolant temperature at low engine speeds, or under light loads, to help reduce internal lubricant friction and improve fuel consumption.

Diesel engines
All Vauxhall Astra GTC diesel engines are fitted with:
    16-valve, dual overhead camshafts
    A weight-saving aluminum cylinder head
    Threaded intake ports for exceptional 'swirl' and burn characteristics
    Oil jet cooled pistons
    A dual-mass flywheel and a maintenance-free exhaust particulate filter

Common Rail, Multiple Fuel Injection
Operating at high pressures up to 1,800 bar, this sophisticated fuel delivery system ensures extremely fine atomisation in the combustion chamber and enables up to five injection pulses per cycle to extract as much energy as possible from a given amount of fuel. The result is exceptionally low fuel consumption and exhaust emissions, as well as reduced engine noise. Multiple injection helps iron out the strong vibrations associated with compression ignition. For example, a pre-injection during the warm-up period reduces cold-start 'knock' to a barely perceptible level.

Variable Geometry Turbocharger (VGT)
The pitch of the vanes on the turbine wheel is continuously varied according to engine load and speed, giving an excellent throttle response, particularly during pick up from low speeds.

Improved Exhaust Gas Recirculation (EGR)
The electronically-controlled EGR system has an additional cooling function. Electro-pneumatically operated bypass flaps, controlled by the engine management system, ensure that the exhaust gas reaches a temperature suitable for combustion on its way back into the cylinder. This contributes to increased power, as well as reduced emissions.

The diesel line-up comprises:

1.7 CDTi
Available in two states of tune, providing either 110PS and 280Nm of torque, or 130PS and 300Nm. Combined cycle fuel consumption for both is 62.8mpg with standard wheel rims fitted, and each achieves 119g/km. Despite being the most frugal models in the range, the 1.7 CDTis allow the GTC to accelerate to 60mph in either 10.0 (130PS) or 11.0 seconds (110PS). In 2012, an ecoFLEX model using a version of this engine will be available in the UK with emissions of just 109g/km. Start/Stop is fitted to all 1.7 CDTi models as standard.

2.0 CDTi
The 2.0 CDTi packs 165PS with an exceptionally strong 350Nm of torque from just 1,750rpm. This helps it achieve a 0-60mph time of just 8.4 seconds and 50-70mph in 6.4 seconds, together with a combined fuel consumption of 58.9mpg and emissions of just 127g/km (18 & 19-inch wheels fitted). Vauxhall's Start/Stop system is fitted to all 2.0 CDTi models as standard.

Hydraulically-damped mountings for improved NVH performance
All powertrains are bolted in position via hydraulically-damped mountings that minimise vibration through the body structure. Adaptor plates enable the same four fixing points to be used for all applications, two on the front sub-frame and one on each longitudinal beam.

The fuel supply system uses an electric pump and filter mounted in the 56-litre fuel tank, which is located low under the rear seat for optimal weight distribution and crash impact protection.

Start/Stop reduces emissions, improves urban fuel consumption
Vauxhall's Start/Stop technology, which is available on all 1.4 Turbo, 1.7 CDTi and 2.0 CDTi engines, is highly efficient and helps to reduce emissions. As soon as the driver selects neutral, the Start/Stop system is activated and the engine unit cuts out automatically. The rev counter needle then assumes the Autostop position. When the driver wants the engine to start up again, he/she just selects first gear and departs. A powerful battery ensures that there is no delay in the engine starting up again.

For safety reasons and to ensure the comfort of passengers, the temperature and pressure functions of the brake power assist unit remain active during the Auto-Stop phase of the Start/Stop system. When necessary, for example during slow city traffic, the driver can manually de-activate the system, using the "eco" switch.

Transmission
Six-speed manual gearboxes, offering a wide spread of ratios and a tall, fuel-saving top gear, are standard fit across the entire range. All gearboxes include triple cone synchronization on first and second gears for easy engagement, and a synchronized reverse gear.

A six-speed automatic gearbox is also available on 1.4 Turbo 140PS and 2.0 CDTi 165PS engines.

MARKET
The all-new Vauxhall Astra GTC replaces the successful Astra Sports Hatch, and will lay down the gauntlet to VW Scirocco and Renault Megane Coupe when it appears in showrooms at the end of November 2011 with a heady mix of dynamic excellence, dramatic design and competitive pricing.

Closely based on last year's stunning GTC Paris concept, the Vauxhall Astra GTC enters the UK market - the biggest in Europe for this model - priced from just £18,495, nearly £1,350 less than the basic VW Scirocco. But even in entry-level trim, the Vauxhall Astra GTC adopts the sophisticated HiPerStrut front suspension derived from the Insignia VXR, offering precision handling and unmatched stability.

The third body style to come off the Astra's Delta platform (following the Hatch and Sports Tourer), the only exterior design elements the GTC shares with its siblings are door handles and the roof aerial - even the wheelbase and tracks are different. Brit, Mark Adams, Vauxhall's Vice President of Design, has aimed to create a car that looks like it's been plucked from the class above, with its low, wide stance and simple, yet rakish lines.

SsangYong e-XIV Concept, 2012

 

 

 

 

• SsangYong e-XIV Concept, 2012

Building on its previously seen XIV and KEV design concepts, SsangYong Motor Company showcases its latest evolution, the SsangYong e-XIV Concept (electric - eXciting user Interface Vehicle) 'range extender' EV at the 2012 Paris Motor Show.

SsangYong displayed its XIV 1 B segment CUV (crossover utility vehicle) concept at the Frankfurt Motor Show in September 2011, and the XIV 2 Coupé at the Geneva Motor Show in March 2012. Now it is integrating its eco-friendly EV technology seen in its two pure EV concepts - the KEV1 and KEV2, and equipping the e-XIV with a small 1 litre petrol engine to give the car real range extender capability for longer journeys.

A distinguishing feature of the SsangYong e-XIV is its glass roof. This includes an integrated 12 solar cell panel for generating solar power to operate the car's auxiliary systems, while also providing greater light, enhanced spatial comfort to the cabin and improved visibility.

Research has shown that worldwide the average daily driving distance is less than 80km, and in EV mode, e-XIV will prove invaluable for daily commuting. But for those who need to drive further, the car's range extender capability gives it a range of up to 600km.

Styling concept
SsangYong e-XIV is based on the XIV 2 CUV Coupé. It is a dynamic EV concept model with the emphasis on efficient energy use through its range extender system.

The styling of e-XIV as an environmentally-friendly vehicle running on electricity and supplemented by alternative energy, has been built using SsangYong's design language to create future products that embrace its development philosophy of 'Robust, Specialty, Premium.'

SsangYong e-XIV pursues crossover design through the combination of the SUV styling of a sports coupé that is suitable both for active driving in the country and short distance motoring around the city.

The Exterior
SsangYong's visual approach of 'Robust Aesthetics' manifests itself in the XIV concept series through the key design elements of 'Inner Dynamic' & 'Subtle Tension' to communicate that inner strength is built on detail and emotional tension.

With its rich side body volume and simple, modern lights, SsangYong e-XIV looks dynamic and progressive, presenting a contemporary look to appeal to younger drivers.

Functional features of the e-XIV are finished in a simple, sleek style, while the high-tech solar cell panel applied to the glass roof maximises the emotional connection of driving in the open while enjoying the thought that 'free' solar power is being harvested.

In addition, the tyres developed exclusively for the driving efficiency of an EV, afford both comfort and safety thanks to the tyre tread design which improves grip while reducing friction.

Interior
Inside there is a four-bucket-seat configuration to provide comfort and privacy for each passenger. Each seat can be positioned to create a variety of seating combinations and a choice in space utilisation.

The interior structure evokes the sporty style of a crossover, and blends a mix of styling cues and materials including carbon fibre. The instrument cluster communicates with the driver using dynamic graphics, and enables active communication between car and driver by displaying necessary information on the centre facia in real time.

The SsangYong e-XIV also combines the 'Auto User Interface' concept of XIV1 and XIV2 to offer a new direction for the car as a moving communication space by combining the latest IT developments for both automotive and personal smart devices.

Solar-powered smart interactive system
The SsangYong e-XIV's glass roof solar panel converts solar energy to electric power and operates interior equipment such as the air conditioning, audio system and internal lighting. Drivers can also select their preferred method of driving by activating the car's VCU (Vehicle Control Unit) via a smart phone or a remote control.

Range extender electric vehicle
The SsangYong e-XIV uses an 80-kW Permanent Magnet Synchronous Motor (PMSM), giving a range of 80km by taking power from the 16-kWh lithium-ion battery. Four hours are required for charging a fully discharged battery, and 20 minutes for quick recharging.

The car also features a range extending system comprising a two-cylinder 1,000cc petrol engine and a 20-kW generator. Once the 80km distance has been achieved, the petrol engine supplies additional power via the generator to extend the range up to 600km, emitting just 45g/km of CO2.

Keen to position itself as a responsible, environmentally aware global company, SsangYong Motor Company is striving to place itself at the forefront of eco-friendly vehicle design and manufacture. This will be achieved through the constant improvement of its high-efficiency internal combustion engines and the development of pure electric vehicles such as the KEV, and e-XIV range extender concept.

Mercedes-Benz SLS AMG Roadster, 2012

 

 

 

 

 

 

 

 

 

•  Mercedes-Benz SLS AMG Roadster, 2012

AMG is presenting a new dream-car: the 2012MY Mercedes-Benz SLS AMG Roadster. This super sports car thrills with a perfect combination of open-top driving pleasure, outstanding driving dynamics and sophisticated lightweight construction. The 2012 SLS AMG Roadster will make its U.S. debut in Fall 2011.

The technological highlights of the 2012 SLS AMG Roadster include an aluminum spaceframe body, an AMG 6.3-liter V8 front-mid engine with dry sump lubrication developing a peak output of 563 hp and 479 pound-feet of torque, a seven-speed dual clutch transaxle transmission and a sports suspension with aluminum double wishbones - all of which will raise the pulse of sports car enthusiasts while providing outstanding driving dynamics and driving pleasure.

The compact fabric soft top of the Mercedes-Benz SLS AMG Roadster opens and closes in just eleven seconds, and can be operated on the move at speeds up to 31 mph (50 km/h). The new Adaptive AMG Sport Suspension with electronically controlled damping is available as an attractive optional extra. It enables the damping characteristics to be modified at the touch of a button. Using the AMG DRIVE UNIT, the driver of the SLS AMG Roadster is therefore able to choose his own suspension setup. Three modes are available: "Comfort", "Sport" and "Sport plus".

Pure roadster design with perfect proportions
The new Roadster adds a second exciting dream-car to the SLS AMG family. Head of Design at Mercedes-Benz, Gorden Wagener: "As in the gullwing model, the pure, athletic design immediately catches the eye. Whether with the roof open or closed, the Mercedes-Benz SLS AMG Roadster is an impressive visual delight!" The perfect proportions are particularly memorable: a long hood, the greenhouse positioned well to the rear and a short rear end. Plus the automatically extending rear wing, long wheelbase, wide track and short overhangs - in short, the convertible SLS AMG exudes effortless performance and an authentic charisma. The pronounced shoulder sections are reminiscent of tensed muscles, and suggest sheer power in combination with the large wheels - 265/35 ZR 19 (front) and 295/30 ZR 20 (rear). The attractive AMG Sepang brown metallic paint finish and weight-optimized forged wheels in a 10-spoke design, painted in matte black with a high-sheen rim flange, are available as new optional extras.

Features reminiscent of the 300 SL Roadster, the classic dream-car from the 1950s, include not only the wide radiator grille with its large Mercedes star and the wing-shaped cross-fin, but also the fins on the hood and on the vehicle sides. Like the Mercedes-Benz SLS AMG Roadster, the 300 SL Roadster appeared slightly later than the original gullwing 300 SL, but unlike the SL's both AMG dream cars are available at the same time.

Interior atmosphere like an aircraft cockpit
The interior continues the breathtaking design idiom of the exterior, and awakens associations with an aircraft cockpit: prominent features include the dashboard in the shape of a wing and the air vents with adjustable, cruciform nozzles reminiscent of jet engines. The extended center console of matte, solid metal and the new E-SELECT lever in the shape of an aircraft's thrust control are also design features adopted from the world of aviation. Another discreet, fine detail is the embossed AMG emblem on the leather-lined selector lever.

The AMG DRIVE UNIT - which like numerous other interior features is available in genuine carbon-fiber - is the central control unit in the center console: it allows the driver to choose a personal vehicle setup, including adjustment of the optional Adaptive AMG Sport Suspension. The AMG Performance steering wheel with its high-grade premium leather lining and flattened bottom rim section provides perfect vehicle control. The shift paddles and lower steering wheel bezel are made of solid metal.

Fully automatic, weight-optimized soft top
The sensual experience in the 2012MY SLS AMG Roadster is further enhanced when the soft top is open, and the powerful, naturally aspirated eight-cylinder engine with 563 hp and 479 pound-feet of torque asserts itself and makes the heart beat faster with its distinctive AMG eight-cylinder sound. The fabric soft top can be opened and closed while on the move at speeds up to 31 mph (50 km/h); the fully automatic opening/closing process takes only eleven seconds. The driver only needs to operate the roof control unit conveniently integrated at the front of the center armrest. When open, the soft top is space-savingly retracted behind the seats in a folded Z-configuration. Three soft top colors - black, red and beige - are available to suit the nine exterior and eight interior colors.

The three-layered fabric soft top is a weight-optimized magnesium/steel/aluminum construction, and contributes greatly to the car's low center of gravity. The soft top has a seamlessly bonded rear window of heated singlelayer safety glass. The flush, gap-free transition between the outer roof skin and the rear window keeps wind noise low. A continuous, flexible water pocket running under the soft top catches rainwater and directs it to the underbody via two apertures on each side. The trunk capacity is 6.1 cubic feet with the roof either open or closed, and therefore roughly equal to that of the SLS AMG Coupé (6.2 cubic feet).

Outstanding material quality and finish
The finest leather, matte-finished solid metal or optional, genuine carbon-fiber trim create an exclusive ambience and correspond with the authentic feel of the cockpit. Precisely executed decorative and contrasting stitching enhances the visual impression, heightens the hand-crafted look and reflects the attention to detail which is the hallmark of Mercedes design.

The standard appointments of the Mercedes-Benz SLS AMG Roadster include black designo leather, heated AMG sports seats, a detachable glass windstop, COMAND with Navigation and DVD player, anti-theft alarm system with tow-away protection and interior monitoring, dual-zone automatic climate control and the KEYLESSGO starting function. The standard AIRSCARF® system exclusive to Mercedes-Benz acts like an invisible scarf warming the head and neck areas of the occupants. It is integrated into the backrests of the AMG sports seats, and blows warm air from vents in the head restraints. The airflow can be adapted for different occupant sizes by means of adjustable louvers, and the level of warmth can be selected in three stages at the touch of a button.

Leather-lined roll-over bars with integrated mesh in a "Silver Shadow" look are available in conjunction with designo Exclusive leather to reduce turbulence in the cockpit. Ambient lighting is integrated into the electrically folding exterior mirrors.

Single-tone or two-tone designo leather in espresso brown is available as a new interior color - this dark shade of brown perfectly matches the new metallic paint finish AMG Sepang brown.

AMG Performance Media and Bang & Olufsen as optional highlights
In addition to the Bang & Olufsen BeoSound AMG surround sound system, another optional entertainment highlight is the AMG Performance Media. In an unprecedented way, this racing-inspired system combines numerous telemetric displays such as engine data, lateral and linear acceleration and lap times on a racetrack. AMG Performance Media is activated by pressing the AMG key in the AMG DRIVE UNIT, and operated using the COMAND Controller. Key functions at a glance:

•     Real-time display of engine oil, coolant and transmission fluid temperature
•     Real-time display of engine output, torque and accelerator position
•     Real-time display of individual tire pressures
•     Real-time display of acceleration time from 0-60 mph or 0-100 km/h (alternatively: quarter-mile)
•     Real-time display of lateral and linear acceleration combined with braking performance and accelerator position, including memory function
•     Recording of individual lap times on a closed racetrack, with sector times and memory function
•     Integration of DRIVE UNIT functions to save setup data to memory and initiate RACE START

The different functions of AMG Performance Media are shown by the color display integrated into the dashboard. Three displays are shown at any one time, with the most important information positioned in the center. Digitally simulated dial instruments with red needles ensure outstanding legibility.

Specifically reinforced aluminum spaceframe, low curb weight
In addition to maximum comfort, the key factor for driving pleasure in the new SLS AMG Roadster is the outstanding performance. The basis for this is the innovative body design: the chassis and body are made of aluminum, a design combining intelligent lightweight construction with high strength. With a curb weight of 3,661 pounds (estimated), the Roadster is only 88 pounds heavier than the Coupé. The result is a remarkable power-to-weight ratio of 6.5 pounds per hp.

To achieve the same level of driving dynamics - without a fixed roof, the Mercedes-Benz SLS AMG Roadster incorporates several features specifically designed to strengthen the bodyshell, including side skirts with greater wall thicknesses and additional chambers. The dashboard cross-member is supported against the windshield frame and center tunnel by additional struts, and a curved strut between the soft top and the tank reinforces the rear axle. The lack of a roof and gullwing doors means that the open-top SLS AMG has a reinforcing crossmember behind the seats to support the fixed roll-over protection system. This also accommodates the 250 watt subwoofer of the Bang & Olufsen BeoSound AMG high-end sound system.

All this prevents unwanted vibrations right from the start, and makes it unnecessary to use the additional, weight-increasing vibration dampers that are often found in open-top sports cars. The weight-optimized aluminum spaceframe weighs 536 pounds, tipping the scales at just 4.5 pounds more than the gullwing model.

Intelligent material mix and low center of gravity
50 percent of the intelligently designed, weight-optimized aluminum spaceframe is made of aluminum sections, 26 percent of sheet aluminum, 18 percent of cast aluminum and 6 percent of steel. Maximum occupant safety requires the use of ultra-high-strength, heat-formed steel in the A-pillars.

The entire vehicle has been designed to achieve the lowest possible center of gravity. This applies both to the low connection points of the powertrain and axles, as well as to the arrangement of the rigid bodyshell structure, which has been kept as low as possible. Examples include the rigid flexural and torsional connections between the front and rear section and the passenger safety cell, which have been designed to use force paths that are as low as possible.

Passive safety
The aluminum spaceframe provides the basis for outstanding passive safety. The extensive safety features include the fixed roll-over protection system, three-point seat belts with belt tensioners and belt force limiters, and eight airbags: adaptive front airbags and kneebags, two seat-integrated sidebags and two windowbags deploying from the door beltlines.

The standard Blind Spot Assist helps the driver with a visual warning symbol and acoustic alert if the danger of a collision with another vehicle is detected when changing lanes.

Powerful AMG 6.3-litre V8 engine with 563 hp
The Mercedes-Benz SLS AMG Roadster has the same, muscular engine as the gullwing model. The 6.3-litre V8 with a peak output of 563 hp at 6,800 rpm makes the open-top SLS one of the most powerful sports cars in its segment. Its power-to-weight ratio is 6.5 pounds per hp. This naturally aspirated engine generates its maximum torque of 479 pound-feet at 4,750 rpm. The convertible SLS AMG accelerates from zero to 60 mph in 3.7 seconds (0-100 km/h in 3.8 s), and the top speed is 197 mph / 317 km/h (electronically limited) - which means that the Roadster has almost identical performance to the gullwing.

The high-revving 6.3-liter V8 engine has the typical characteristics of powerful racing engines. It responds immediately and effortlessly to accelerator movements. The use of a dry sump lubrication system allows for a considerably lower installation in the vehicle, yielding a lower center of gravity for high lateral acceleration and thrilling driving dynamics.

Achievement of demanding fuel consumption targets
Despite its uncompromisingly athletic character, fuel consumption has also been addressed. The SLS AMG consumes 13.2 litres per 100 kilometres (NEDC combined), corresponding to CO2 emissions of 308 grams per kilometre. Efficiency enhancements include the familiar AMG-exclusive, friction-optimized twin-wire arc-sprayed coating on the cylinder walls as well as the on-demand, map-optimized oil supply and intelligent generator management: during the engine's overrun phases, kinetic energy is used to charge the battery rather than wasted by simply generating heat. Conversely, the generator is switched to no-load operation during acceleration, thus reducing the load on the engine. Sophisticated catalytic converter technology enables current and future emission standards such as Euro-5, LEV 2 and ULEV to be met.

Rev-matching transmission with transaxle configuration and torque tube
The AMG 6.3-litre V8 engine delivers its abundant power to the rear transaxle via an ultra-light carbon-fiber driveshaft - similar to the setup used in the DTM C-Class racing touring car. The rev-matching transmission is mounted at the rear (transaxle), and connected to the engine housing via a torque tube. A carbon-fiber shaft rotates at engine speed in the torque tube. The advantages of this sophisticated solution lie in the rigid link between the engine and transmission and, in turn, the optimum support for the forces and torque generated.

The AMG SPEEDSHIFT DCT 7-speed sports transmission boasts fast gear changes with no loss of tractive force - in as little as 100 milliseconds. The driver has a choice of four different driving modes: "C" (Controlled Efficiency), "S" (Sport), "S+" (Sport plus) or "M" (Manual). In the Sport, Sport plus and Manual modes the automatic rev-matching function is active; all the modes can be selected conveniently via the rotary control knob on the AMG DRIVE UNIT. The RACE START function provides optimum traction for full power launches from a dead stop -- as does the mechanical differential lock, which is integrated into the compact transmission housing.

Sophisticated suspension layout with double-wishbone axles
The front-mid-engine plus transaxle configuration provides an ideal front/rear weight distribution of 47 to 53 percent. Mounting the engine behind the front axle has created ideal driving dynamics with precise steering, first-class agility, low inertia for spontaneous directional changes and outstanding traction. All four wheels are located on double wishbones with a track rod, a technology that has proven itself in motor racing right through to Formula 1. With a double-wishbone axle, the wheel location and suspension functions remain separate; the spring/damper struts are supported on the lower wishbone. The double-wishbone setup with its high camber and track rigidity positively locates the wheel with minimal elastic movements, providing the driver with an optimum sense of road contact when driving at the limits.

Wishbones, steering knuckles and hub carriers at the front and rear are made entirely from forged aluminum - substantially reducing the unsprung masses; this configuration also notably improves the suspension response. The long wheelbase of 105.5 inches not only results in outstanding straight-line stability but also low wheel load shifts, significantly reducing the vehicle's tendency to dive and squat when braking and accelerating. The broad track width - front 66.2 inches, rear 65.1 inches - provides lower shifts in the wheel loads from the inner to the outer wheel when cornering, enabling the tires to retain more grip.

New Adaptive AMG Sport Suspension
The new Adaptive AMG Sport Suspension with electronically controlled damping is available as an attractive optional alternative to the standard AMG sports suspension. It enables the damping characteristics to be modified at the touch of a button. Using a button on the AMG DRIVE UNIT, the driver can choose his own suspension setup. Three modes are available: "Comfort", "Sport" and "Sport plus". The current mode is shown in the instrument cluster.

"Comfort" delivers a sensitive response with soft damping characteristics, while in "Sport" mode the shock absorbers have a much stiffer response depending on the driving situation. This not only leads to better road contact, but also effectively suppresses body roll and pitching. "Sport plus" is ideal for challenging laps on a racetrack: in addition to the higher damping force, this mode comes with specific control algorithms that have been tailor-made for a sporty driving style. The new, variable suspension will also be optionally available for the SLS AMG Coupé in future.

Direct steering, differential lock and 3-stage ESP
The rack-and-pinion steering gear provides a consistently direct steering feel with a constant mechanical ratio of 13.6:1, in tune with the high expectations placed on a super sports car. The power steering provides speed-sensitive assistance and improves feedback for the driver as speed increases, valuable during high-speed straight-line driving. Mounting the steering gear in front of the engine on the integral subframe enables the engine to be set down very low. The SLS AMG comes with 3-stage ESP as standard, providing the driver with access to the three "ESP ON", "ESP SPORT" and "ESP OFF" modes at the touch of a button. In "ESP OFF" mode, operating the brake pedal restores all the normal ESP functions.

The acceleration skid control (ASR) system's traction logic is active in all three ESP modes. If one of the drive wheels starts to spin, specific brake pressure is applied to improve traction significantly - especially in conjunction with the standard-fit mechanical multi-disc limited-slip differential. This means that the engine power is transferred to the road more effectively during aggressive driving.

Optional AMG ceramic high-performance two-piece braking system
The AMG high-performance braking system with two-piece brake discs at the front provides extremely short stopping distances even under enormous loads. Red-painted brake calipers at all four corners are available as an option. The optional ceramic two-piece brakes with even larger discs provide even better braking performance. The ceramic brake discs perform at even higher operating temperatures thanks to their greater hardness, all combined with an impressive weight reduction of around 40 percent. Reducing the unsprung masses has further improved both comfort and grip, and the reduced rotating masses at the front axle provide a more direct steering response.

Lightweight construction was also key when it came to the wheels: AMG light-alloy wheels based on the innovative flow-forming principle reduce the unsprung masses while improving driving dynamics and suspension comfort. In addition to the standard AMG twin 5-spoke light-alloy wheels, there is a 7-spoke wheel that's available as a no cost option. Weight-optimized 10-spoke forged wheels are available as an option. 265/35 R 19 (front) and 295/30 R 20 (rear) tires developed exclusively for the SLS AMG provide optimum performance. A tire pressure monitoring system is fitted as standard to permanently monitor tire pressure in all four wheels, with an individual display for each tire.

Production in Sindelfingen, market launch in Fall 2011
The convertible super sports car will be produced at the largest Mercedes-Benz production plant in Sindelfingen. The AMG 6.3-litre V8 engine comes directly from the AMG engine workshop in Affalterbach, where it is hand-assembled according to the traditional "One man, one engine" philosophy.

The selling price in Germany is €195,160 (incl. 19% VAT). The 2012 SLS AMG Roadster make its U.S. debut in Fall 2011.

Audi S5, 2012

 

 

 

 

•  Audi S5, 2012

Audi is refreshing the A5 model series. Advanced technologies are being added to the Sportback, Coupé, Cabriolet and S5 models in the areas of the engine, quattro drive and infotainment for even more efficiency, sportiness and intelligence. The updated design visually underscores the technical expertise involved in these versions.

The Audi A5 models are now more distinctive than ever. The rear lights and the headlights have been redesigned and are optionally available in xenon plus technology with homogenous LED daytime running lights. New colors and materials accentuate the interior, and many details of the operating concept have been fine-tuned.

Each of the four TDI diesel and three TFSI gasoline units in the new engine lineup include forced induction and direct fuel injection. The new 1.8 TFSI features a number of groundbreaking innovations. Fuel consumption has been reduced by 11 percent on average. The start-stop system and the recuperation system come standard with all engine-transmission configurations.

Each engine is matched with the ideal drivetrain - six-speed manual, multitronic, seven-speed S tronic, front-wheel drive or quattro drive. When combined with S tronic, the quattro drivetrain uses the crown-gear center differential and torque vectoring; the sport differential is the perfect complement. The chassis has been more finely tuned, with the optional Audi drive select system and dynamic steering making the Audi A5 even more fun to drive. The electromechanical power steering is new to the Audi A5 family.

The new A5 is a highly intelligent car. Its driver assistance systems have undergone intensive further development. The range of infotainment options now includes the Bluetooth online car phone, which delivers a number of special services and connects the Audi A5 to the Internet.

Exterior design and body
Ever since their debut, the models of the Audi A5 family - the Sportback, Coupé and Cabriolet - have impressed with their elegance. The flowing silhouettes, the sharp lines and the muscular surfaces make strong statements. The product improvement adds sharp new accents to the design.

The upper corners of the single-frame grille in high-gloss black are beveled. The grille's lateral bars and the Audi rings appear to be sculpted. The new bumper features pronounced air inlets with massive struts, revamped grilles and flat fog lights. Sharply chiseled edges give the engine hood a three-dimensional look; the entire front end appears even flatter and wider.

The headlights have also been updated. Their lower edge forms a wave; their interior has been restructured. With the optional xenon plus headlights, the LED daytime running lights form a narrow, homogenous clasp framing the headlight. Audi also offers the adaptive light system with dynamic cornering light and turning light. The rear lights have also been redesigned and are optionally available with continuous LED light strips. The bumper includes a number of additional details.

The product improvement has added a millimeter (0.04 in) to each of the exterior dimensions. The Audi A5 Sportback is 4.71 meters (15.45 ft) long; the Coupé and the Cabriolet 4.63 meters (15.19 ft). The range of colors has been reshuffled and now comprises 16 colors. The fully automatic acoustic top of the Audi A5 Cabriolet is available in four colors. The S line exterior package is available for those who appreciate an even more dynamic look.

The vehicle bodies impress with high rigidity, outstanding crash safety, high vibrational comfort and low weight. The front fenders are made of aluminum for improved axial load distribution. Aerodynamic fine-tuning measures include a lined underbody.

Interior design
A harmonious balance of proportions and surfaces, fine materials and top-quality fit and finish: The interior of the Audi A5 models reflects the Audi brand culture. It is now more elegant than ever - with new steering wheels, including an option for a flattened ring, new steering column stalks and with narrow chrome clasps framing the control elements.

A button is used to directly adjust the optional seat heating and seat ventilation in three stages. Also updated were the ignition key, the selector lever for the automatic transmission, the button for the optional Audi drive select system and the controls of the high-efficiency air conditioning and multifunction steering wheel. All displays are now illuminated in white.

New paint covers the bezels on the instrument cluster and the center console, and there is also a new selection of upholstery and inlays. The latter are available in Aluminium Trigon or in walnut or natural fine grain ash. Almost all of the interior colors are new. Fine Nappa leather replaces Valcona in the Sportback, and the armrests can also be covered in leather, if desired. The Audi A5 Sportback is also now optionally available as a five-seater.

Another attractive option is the S line sport package. It drapes the interior in black and accentuates it with elegant applications. A sport suspension lowers the vehicle body by 10 millimeters (0.39 in), and 18-inch wheels round out the package. Buyers looking for that special something will find many more customization options in the Audi exclusive range, including the stylish Audi exclusive line with two-tone seat coverings.

Engines
The Audi A5 family sets new standards for sportiness and efficiency. All engines feature forced induction and direct injection for tremendous pulling power. Even the entry-level engine produces 320 Nm (236.02 lb-ft) of torque. The start-stop system and the recuperation system are standard with all engines - no other manufacturer takes such a rigorous approach. The lineup comprises three gasoline engines and four TDI units. CO2 emissions have been reduced by as much as 22 percent.

The completely redesigned 1.8 TFSI showcases the full extent of Audi's expertise. Groundbreaking innovations can be found in the control of the valves and their lift, the thermal management concept, the injection system, the turbocharger and the integration of the exhaust manifold. In the Audi A5 Coupé, the high-end four-cylinder unit consumes on average just 5.7 liters of fuel per 100 km (41.27 US mpg). This best-in-class value corresponds to 134 grams CO2 per km (215.65 g/mile) and is 21 percent lower than before. With 125 kW (170 hp), the 1.8 TFSI accelerates the A5 powerfully.

The output of the 2.0 TFSI remains unchanged at 155 kW (211 hp). New to the Audi A5 lineup is the 3.0 TFSI, a supercharged V6 producing 200 kW (272 hp).

The diesel engines are also impressively efficient, and the four-cylinder units feature modifications in numerous areas. Equipped with the 130 kW (177 hp) 2.0 TDI and a manual transmission, the Audi A5 Coupé consumes on average just 4.7 liters of fuel per 100 km (50.05 US mpg) - a CO2 equivalent of 122 g per km (196.34 g/mile) and a milestone in the coupe segment.

Three V6 diesel units round out the lineup on the top end. The 3.0 TDI with 150 kW (204 hp) is the most fuel-efficient six-cylinder unit in its class worldwide. In the Audi A5 Coupé with multitronic, it consumes on average 4.9 liters (48 US mpg) of fuel and emits just 129 grams CO2 per km (207.61 g/mile). The second variant of the 3.0 TDI produces 180 kW (245 hp). Arriving somewhat later is a particularly low-emissions clean diesel model that will make the Audi A5 the first coupe on the market to meet the Euro 6 diesel standard.

Drivetrain
Audi offers the ideal drivetrain for each engine. A manual six-speed transmission and the continuously variable multitronic are available for models with front-wheel drive. The quattro models come with a manual transmission or the lightning-fast, seven-speed S tronic. All of the transmissions shine with their convenience and precision, high efficiency and wide gear spread. The long ratios in the upper gears reduce fuel consumption.

Members of the Audi A5 family equipped with quattro permanent all-wheel drive and the S tronic transmission also feature the crown-gear center differential with torque vectoring. During normal driving, the mechanical component sends the engine's power primarily to the rear wheels. If necessary, it redistributes the power lightning-fast and smoothly. Up to 70 percent can flow to the front axle, 85 percent to the rear axle. Torque vectoring uses targeted, minor braking interventions to make the handling even more precise.

Available as an option in all Audi A5 quattro models, the sport differential provides for maximum precision and high traction. It uses two superposition stages engaged via multi-plate clutches to actively distribute the torque between the rear wheels as needed.

Chassis
The Audi A5 models set standards for sporty dynamics, luxurious ride comfort and excellent driving safety. Most of the components of the five-link front suspension and the trapezoidal-link rear suspension are made of aluminum. The rear suspension bearings and the damper tuning have been updated for more precise handling and even greater comfort.

The ESP stabilization program with electronic limited slip differential is standard in all front-wheel drive versions of the Audi A5. ESP uses minimal braking interventions at the inside front wheel for even more agility during dynamic driving. The large brakes - with ventilated front and rear discs in many variants - offer excellent stopping power and are very easy to modulate.

17-inch wheels with 225/50 tires are standard. Options include wheels up to 20 inches and 265/30 tires as well as four new wheel designs.

Among the high-end features in the model series is Audi drive select. In the basic configuration, it adjusts the power steering boost, the accelerator characteristic, the shift points of the automatic transmission and the automatic air conditioning. Using a button in the cockpit, the driver can determine whether these components should work in "comfort," "auto," "dynamic" or "efficiency" mode. The latter helps to drive the Audi A5 particularly efficiently. If the car is equipped with a navigation system, there is also an "individual" mode that the driver can largely configure him or herself.

Audi drive select can be combined with additional modules, if desired. These are the sport suspension with damper control, the sport differential and dynamic steering, which steplessly varies the steering ratio by nearly 100 percent as a function of speed.

Another new standard feature in the Audi A5 model series is the electromechanical power steering. An electric motor generates the right amount of boost for the speed being driven. The electromechanical power steering features a direct ratio, reacts instantly and provides precise road feedback. It intervenes slightly to support the driver when braking on a surface with less grip on one side of the car.

The system reduces fuel consumption by up to 0.3 liters per 100 km and up to 7 g CO2/km (11.27 g/mile) because it consumes no energy at all while driving straight.

Assistance systems
The assistance systems in the Audi A5 model series use a variety of technologies to make driving even more controlled. Some of them have been improved with new functions. Among the standard features is the new driver information system with recommendations to take a break. It uses steering motions and additional parameters to detect when the driver is getting tired and issues an appropriate warning.

Audi side assist supports the driver when changing lanes by using radar to monitor the space behind the car. Audi active lane assist - a new feature in the Audi A5 - helps the driver to maintain the lane. A camera detects the lane markings and the system makes slight corrections to the electromechanical steering, if necessary. The adaptive cruise control uses radar technology to maintain a constant interval between the Audi A5 and the vehicle ahead. At speeds below 30 km/h (18.64 mph), it initiates maximum braking in the event of an impending collision.

Infotainment systems
The infotainment systems in the Audi A5 have been significantly upgraded. Audi equips all models in the A5 lineup with a CD radio and eight speakers.

The optional top-of-the-line unit is MMI navigation plus with a large hard drive, seven-inch color monitor, 3D graphics and DVD player. Its controls have been improved. The number of hard buttons has been reduced from eight to four and the volume control now features a joystick cap to make it easier to choose songs. Voice control and digital radio reception also received some fine-tuning.

An additional option is the Bluetooth online car phone. Audi connect is the catchword for the attractive services this phone brings to the A5, which include Google POI search, navigation with Google Earth images and a WLAN hotspot. The hotspot enables passengers to surf the Internet and send and receive e-mail with their mobile devices. Audi traffic information online is an additional service that does a much better job than the familiar TMC standard of providing the driver with extremely precise and current information about the traffic load along the selected route. All the driver needs to use these functions is a data-capable SIM card.

Prices
Despite the extensive product improvement, Audi is raising prices only slightly. The price increase for the Audi A5 Coupé 2.0 TFSI is only €200, for example. The base model, the Audi A5 Sportback 1.8 TFSI, costs €33,350.

The Audi S5
The top models in the series - the S5 as Sportback, Coupé and Cabriolet - have also been refreshed. All S5 models, including the Coupé, are now equipped with the 3.0 TFSI producing 245 kW (333 hp). Compared to the 4.2-liter V8 it replaces in the Coupé, the supercharged V6 consumes on average 20 percent less fuel per 100 kilometers. Average fuel consumption is just 8.1 liters (29.04 US mpg) while performance remains impressive. The S5 Coupé accelerates from 0 to 100 km/h (62.14 mph) in just 4.9 seconds on its way to an electronically governed top speed of 250 km/h (155.34 mph).

Visual cues to the updated S models include new lights, modified body details and new crystal-effect paint finishes. Subtle changes can also be found in the interior. The most important technical updates for the Audi S5 are quattro drive with the crown-gear center differential and electromechanical power steering. The special S sport suspension and the standard 18-inch wheels deliver the power to the road.