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 GT 63 S 4MATIC+
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| Mercedes-AMG GT 63 S 4MATIC+ |
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<< Prev Page 2 of 3 Next >>  The AMG SPEEDSHIFT MCT 9G 9-speed transmission is specially tuned to the requirements of the eight-cylinder variants of the new four-door AMG GT. A wet clutch is used here. This reduces weight and inertia and optimises the response. The extensively tailored software enables extremely short shift times and fast multiple downshifts and delivers an especially emotive gearshifting experience thanks to the double-clutching function. There is also a RACE START function, ensuring optimum acceleration.The six-cylinder inline engine is coupled with the AMG SPEEDSHIFT TCT 9G transmission. In conjunction with the torque converter the transmission is tuned to the special requirements of this engine. On the other hand, the extremely fast and emotive gearshifting characteristic of an AMG model is also possible depending on the drive program. In order to meet the high demands of impressive driving dynamics, Mercedes-AMG engages all the components this takes. With its sophisticated design the bodyshell of the Mercedes-AMG GT 63/53 plays an equally crucial role as the ingenious control strategy of the all-wheel drive system. And it is only in the optimum interplay together with the active aerodynamics, the rear axle steering and the ESP that the complicated suspension tuning unleashes its full potential. Through the complex networking of all the systems and components the developers in Affalterbach were able to bestow on the car the high level of driving dynamics expected of it as a member of the AMG GT-family. One aim during development of the new four-door AMG GT was to anchor the genes of a sports car in the bodyshell. In order to do this, analysis and simulation methods from racing were used in order to reinforce the structure where necessary for maximum performance. The very rigid front section prevents unwanted distortions about the longitudinal and transverse axle, which ensures precise steering and better feedback for the driver. In the area of the centre and tail end of the vehicle new reinforcement concepts were used in conjunction with state-of-the-art CRP plastics. This, together with further individual measures plus close networking with Chassis Development right from the outset, ensured that the four-door AMG GT was given an optimum basis for high lateral dynamics potential. The outstanding agility and racetrack-ready driving dynamics of the four-door AMG GT are also down to the special AMG suspension. On the six-cylinder model a suspension with steel springs and adjustable damping is used as standard. The suspension on the eight-cylinder variants is based on the fully load-bearing multi chamber air suspension AMG RIDE CONTROL+. A rigid integral carrier bears the front axle, engine, transmission and steering gear. In conjunction with the wide track width and the configuration for large tyre dimensions, wheel location and spring elements which are independent of one another facilitate high lateral acceleration, whilst the low unsprung masses promote the agile driving feel yet further. The rear axle differential also has a new specially reinforced mount to improve the NVH (noise, vibration, harshness) characteristics. As on the AMG GT R, an anti-roll bar made of tubular material reduces the overall weight of the rear axle. All AMG GT 4-Door Coupé models are equipped with the AMG Performance 4MATIC+ all-wheel drive. An electro-mechanically controlled clutch connects the permanently driven rear axle variably to the front axle. The best possible torque split is continuously computed according to the driving conditions and driver's input. The transition from rear-wheel to all-wheel drive and vice versa is seamless, as the intelligent control is integrated into the overall vehicle system architecture. Alongside traction and lateral dynamics, the all-wheel drive also improves the longitudinal dynamics for even more powerful acceleration. It is still possible to drift thanks to fully variable torque distribution. The Drift Mode is suitable for this; in the S version of the four-door AMG GT it is standard, and in the other models it is available as an option. This can be activated in the "RACE" drive program using the shift paddles, provided that ESP is deactivated and the transmission is in manual mode. When activating the Drift Mode the four-door sports car thus turns into a model with purely rear-wheel drive. To improve traction and dynamism the AMG GT 63 S has an electronically controlled locking differential at the rear axle as standard. The slip is thus suppressed at the inner wheel on bends, ensuring optimum grip. The driver is therefore able to accelerate out of corners earlier and with more power thanks to the improved traction. The vehicle remains more stable when braking from high speed, while the limited-slip differential also improves traction when accelerating from rest. The electronic locking differential is part of the Dynamic Plus package and in this combination it is also optionally available for all further variants of the four-door AMG GT. The AMG GT 4-Door Coupé responds even more sensitively to steering commands thanks to the active rear axle steering which comes as standard in the V8 models and is optional in the six-cylinder versions. The system facilitates an even better combination of agility and stability and thus reinforces the dynamism and the handling safety of the new AMG GT four-door model. Up to a speed of 100 km/h, the rear wheels point in the opposite direction to the front wheels via two electric actuator motors. As a result, the car turns into corners with significantly higher agility. Under everyday driving conditions, the driver also benefits from a smaller turning circle. At speeds higher than 100 km/h, the system turns the rear wheels in the same direction as the front wheels. That noticeably improves driving stability. At the same time, the lateral force on the rear wheels builds up considerably faster on changes of direction, thus improving the response to the steering. The driver can also rely on extreme rear-axle grip and high stability when changing direction quickly, without the usual tendency for the rear end to break out. The electromechanical speed-sensitive power steering has a variable ratio. It impresses with its precise feedback thanks to the AMG-specific rack-and-pinion steering with a variable ratio. Power assistance also varies between the three stages "Comfort", "Sport" and "Sport+". The corresponding characteristic is automatically activated depending on the selected AMG DYNAMIC SELECT transmission mode or can be personalised as required in "Individual" mode. In line with the high output values and their associated performance the eight-cylinder models have a large-dimensioned brake system consisting of compound discs with 6-piston fixed callipers at the front and single-piston floating brake callipers at the rear. The S variant is characterised by yellow brake callipers, whilst the base variant of the eight-cylinder sports red brake callipers. The six-cylinder model is also equipped with internally ventilated and perforated compound brake discs with brake callipers painted silver grey. As an option a high-performance ceramic brake system with bronze-coloured 6-piston fixed callipers at the front and single-piston floating brake callipers at the rear can be ordered, saving weight compared with the compound discs and thus reducing the unsprung masses. Further advantages are their high overall and fading stability under high stress. The brake system also wins points with a high service life and immediate response - guaranteeing fast lap times. << Prev Page 2 of 3 Next >> |
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