BMW is unveiling the third generation of its high-performance executive-class Sports Activity Vehicle (SAV) and Sports Activity Coupe (SAC) models...
Mercedes Benz presented new AMG GT R Roadster
Beautiful, fast, attractive - that's the new Mercedes AMG GT R ...
With this latest addition the AMG GT family now has 16 members: five two-door coupés, four roadsters, two customer sports racing cars and five 4-door coupés. "The new AMG GT R Roadster is far more than the combination of the thrilling vehicle dynamics of the GT R with the special flair of our GT Roadsters. It is the essence of two worlds, blending to deliver our brand pledge, Driving Performance, in a very special way. With our GT R Roadster we have without doubt once again developed a brand-defining sports car. It too embodies Mercedes-AMG in form, function and vehicle dynamics and enriches our GT family with a highly exclusive variant limited to 750 units", says Tobias Moers, Chairman of the Management Board of Mercedes-AMG GmbH.
The AMG 4.0-litre V8 biturbo in the AMG GT R Roadster delivers an output of 430 kW (585 hp) and maximum torque of 700 Nm. This is available over a wide engine speed range from 2100 to 5500 rpm. The eight-cylinder power unit delivers muscular performance in all engine speed ranges, combined with high efficiency. A sprint from standstill to 100 km/h is absolved in 3.6 seconds. The dynamic power delivery continues right up to the top speed of 317 km/h.
Wants to stay ahead even at a standstill: the exterior design
The low-slung front section and the forward-inclined AMG-specific radiator grille create a distinctive "shark nose" impression and make the car appear to sit lower on the road. At the same time, this shape lowers the vehicle's back-pressure point, enhancing the flow of cooling air and the car's aerodynamic performance.
The standard-fit LED High Performance headlamps strengthen the AMG GT family tie with their light signature. A tri-functional, arched light guide takes on the functions of daytime running light, navigation light and turn signals. The multi-chamber reflector system with three single reflectors each for dipped beam and main beam not only ensures optimal illumination of the roadway, but also gives the AMG GT Roadster a sporty, dynamic look which gains even more optical depth as the result of the black background.
The V-shaped arrow-like appearance of the front end also enhances the dynamic looks, thus embodying the uninhibited forwards thrust of the AMG GT R Roadster even before it moves. The front apron in jet wing design and the front splitter emphasise the car's width. The large outer air inlets in the front apron guarantee the increased supply of cooling air to the engine. For this reason, they sport two aerodynamically shaped horizontal fins in place of meshes and as a result route the airflow to the radiators without loss.
Additional Air Curtains on the outside of the front apron calm the airflow, improving the Cd value of the open-top two-seater. Thanks to their narrow, vertical openings, the Air Curtains also guide the air specifically towards the wheel arches, optimising the flow properties. To ensure ideal airflow through the double wheel arch radiators, the roadster additionally features unique wheel arch liners with special cooling-air slits.
An active aerodynamics profile is concealed almost invisibly in the underbody in front of the engine. Weighing around two kilograms, this light carbon-fibre element is speed-sensitive and automatically extends around 40 millimetres downwards depending on the drive program. This process involves considerable change in the airflow and results in what is known as the Venturi effect, which additionally "sucks" the car onto the road and reduces the front-axle lift by around 40 kilograms at 250 km/h. The aerodynamics profile automatically retracts again depending on the drive program and speed.
The driver can feel the advantages in the steering: the roadster can be steered even more precisely when cornering at high speed and exhibits even better directional stability. Especially during fast cornering and under high lateral acceleration, the vehicle delivers far more agile response with clear steering-wheel feedback while remaining easily controllable at all times. In addition, the drag coefficient is improved. The downforce on the rear axle remains at an unchanged high level.
When the electrically operated profile is extended, the radiator air outlet opens at the front end and precisely guides the air flow towards the double rear diffuser, which therefore also benefits from an optimal flow of air. This improves the handling stability of the rear axle while reducing the temperature level of the hotspots at the rear. At the same time, the aerodynamics measures ensure optimised stopping power by routing more cold air specifically to the wheel disks.
The active air regulation system AIRPANEL included as standard is a particular technical highlight. Vertical louvres at the bottom of the front apron are opened and closed electronically by means of an electric motor in around one second to guarantee the required amount of cooling. Constantly achieving the ideal position calls for highly intelligent and fast control.
During normal driving with no increased cooling demand, the louvres are closed for reduced drag and the air is directed at the underbody. This improves the aerodynamic efficiency. Only when certain components reach predefined temperatures and the air demand is particularly high do the louvres open to allow the maximum cooling air flow to the heat exchangers.
The front wings of super-light carbon add a total of 46 millimetres to the width of the roadster at the front compared with the AMG GT and AMG GT S Roadster and make room for the wider track and large wheel/tyre combinations. The powerfully sculpted wings emphasise the longitudinal dynamics in addition. A further distinguishing feature is the special wing signet featuring a fin and a large air outlet through which the waste heat from the engine bay flows. This fin is perforated and incorporates the AMG diamond logo with five slats.
The side view additionally benefits from the standard-fit AMG Performance forged wheels in matt black. The especially lightweight 10-spoke wheel is exclusive to the AMG GT R models and its highly elaborate design includes a drop-centre rim, a milled groove and two high-sheen rim rings of different width. There are size 10.0 J x 19 ET56 wheels at the front and 12.0 J x 20 ET52 at the rear. The lightweight design of the wheels has three advantages: it reduces the overall weight, the rotatory mass and the unsprung masses.
The brake callipers, which are painted in yellow, can be seen through the wheels. The side sill panels make the vehicle look even lower stance on the road, while inserts in high-gloss black set an individual tone. The same applies to the high-gloss black caps on the housings of the door mirrors.
The rear end also features numerous, conspicuous differentiations. The aluminium sidewalls make the AMG GT R Roadster 57 millimetres wider at the rear than the AMG GT and AMG GT S Roadster. This creates room for the larger 20-inch wheels and tyres as well as the wider track. These measures make for improved traction while allowing higher cornering speeds.
The wider design of the rear apron with large outer vent openings and vertical swage lines improves the airflow at the rear end, as does the double diffuser. The overall heat dissipation is optimised as the warm air is exhausted by the double diffuser during driving.
A small air outlet is incorporated between the tail lamps for additional dissipation of the heat generated by the rear silencer. A further distinguishing feature of the AMG GT Roadster is the large exhaust tip with centrepiece, which is centrally positioned in the rear apron. It is flanked by two more black tail pipes on the left and right of the diffuser.
The large rear wing with an integral third brake lamp is fixed to the boot lid and increases the downforce on the rear axle. The aerofoil mounts are painted in vehicle colour whereas the blade is finished in high-gloss black. Depending on the application or racetrack conditions the inclination of the aerofoil blade can be mechanically precision-adjusted – for example in order to increase the downforce on the rear axle.
The three-layered fabric soft top is supported by a magnesium/steel/aluminium structure of low weight, which helps to keep the vehicle's centre of gravity low. The inserted acoustic mat reduces noise.
There is a new exclusive colour shade available for the AMG GT R Roadster, which is also being offered in parallel in the AMG GT R: the fine designo graphite grey magno matt paint extends the colour palette to a total of 14 choices.
Anyone wishing to emphasise the close connection to motorsport even further can choose the optional AMG Carbon-Fibre Packages. With the AMG Carbon-Fibre Package I the front splitter, the fins in the wings, the inserts in the side skirts as well as the rear diffuser are in a high-quality carbon-fibre look. The AMG Carbon-Fibre Package II with the rear aerofoil blade, the rear aerofoil end plates and the outside mirror housing in carbon fibre completes the sporty appearance.
The interior design echoes the design lines of the exterior. The dashboard places a firm emphasis on width, creating an impression of a powerful wing. The driver is integrated into the cockpit thanks to the high beltlines, the door trims with their concave design, the dynamically rising centre console and the low seat position. It feels like a custom-fit suit and made-to-measure shoes – so is very closely connected to the roadster. In the centre console a badge with the inscription "1 of 750" points to the roadster's limited number of units.
The standard-specification AMG Performance seats in black/black Exclusive STYLE nappa leather offer strong lateral support with their more deeply contoured side bolsters on the sitting surface and seat backrest. The neck-level heating AIRSCARF is optionally available, making open-air driving a pleasure even in low outside temperatures. The air outlet is seamlessly integrated in the head restraint section, the temperature of the outflowing air can be adjusted in three stages.
Customers wishing to enjoy comfortable temperatures even on very hot summer days can also opt for the seat climate control, which is also available for the AMG Performance seats. The intensity of the climatisation can be set in three stages.
As standard the AMG GT R Roadster comes with AMG black carbon fibre/piano lacquer trim elements including the Exclusive Trim Package. The scope comprises the centre console insert and the centre air vent rings in black piano lacquer. The insert in the centre console, the trim around the four air vents in the instrument panel and the trim strips in the armrests in the doors are in high-quality high-gloss carbon fibre. The trim elements are also available in black matt carbon fibre.
The AMG GT R Roadster has been given fully digital instrument displays with an instrument cluster measuring 12.3 inches in front of the driver and a 10.25-inch multimedia monitor on the centre console. The instrument cluster offers a screen design with the three AMG-specific display styles "Classic", "Sporty" or "Supersport". In the "Supersport" mode, there is also extensive additional information, such as a prompt to shift up in manual transmission mode. The newly designed visualisations in the multimedia display enable further vehicle functions to be experienced even better, e.g. with an animated presentation of the driving assistance, vehicle and communication systems.
The innovative, coloured display buttons in the V-shaped centre console integrate the display and control of transmission logic, suspension, ESP, exhaust system, aerodynamics profile and start/stop function. Using TFT technology the display buttons use intuitively comprehensible symbols to show the function and are easy to operate with just a small tap of the finger. The display buttons are supplemented by the two rocker switches for the drive programs and volume control of the audio system.
The AMG GT R Roadster has also been given the new AMG Performance steering wheel as standard. It is characterised by its sporty design, a flattened bottom section with a heavily contoured rim and intuitive operation. The steering-wheel rim is completely covered in DINAMICA microfibre. The galvanised steering wheel gearshift paddles allow an even sportier driving style with manual gear shifting. The integrated Touch Control buttons can be used to control the functions of the digital dash and the multimedia display by means of horizontal and vertical swiping of the finger.
As standard the AMG steering-wheel buttons also have a round controller with an integrated display as well as two vertically positioned coloured display buttons with switches. The AMG drive programs as well as the AMG TRACTION CONTROL can be actuated via the right-hand controller. The selected setting is shown on the colour LCD display directly integrated in the controller.
The two freely configurable display buttons and the additional switches on the left-hand side enable further AMG functions to be controlled directly on the steering wheel. This means that the driver can concentrate fully on dynamic driving without having to take their hands off the wheel. Each required function can be depicted on the display icon and its switch is tapped by the driver to set the respective function. So the two individually preferred AMG functions can be defined exactly and the settings changed with just one tap of the finger.
The AMG Interior Night Package also comes as standard. In this package, the shift paddles, steering wheel spokes, seat insert (on the AMG Performance seat) as well as the door sills are finished in high-gloss black, which combines with the standard-specification AMG carbon fibre/piano lacquer trim elements to further emphasise the sportiness.
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