Mercedes-Benz AMG C-Class Coupe C63 S – Powertrain
For this generation of Mercedes-Benz AMG engines, gone is the naturally aspirated breathing, replaced with a downsized twin-turbocharged engine. The latest V8 engine from Mercedes-Benz AMG now only displaces 4.0-litre with outputs that eclipse the old 6.2-litre – 510 PS at 5,500 to 6,250 rpm and 700 Nm of torque from 2,000 to 4,500 rpm in the ‘63 S’ form.
The high-revving Biturbo engine (7,000 rpm) in the C 63 S comes with dynamic engine mounts, reducing vibration plus minimising energy losses by making the powertrain rigidly mounted. Minimised mass movements of the powertrain also means less corrective action needs to be taken by the driver when steering the agile Mercedes-Benz AMG C-Class Coupe C 63 S.
Sound is of importance to Mercedes-Benz AMG, where it is one of the top reasons customers choose this brand. As such, the Mercedes-Benz AMG C-Class Coupe C 63 S comes standard with an AMG exhaust system with a variable flap.
Power is sent to the rear wheels via a new 9-speed automatic transmission that was introduced during the 2019 facelift timing, replacing the older 7-speed unit.
Unlike the regular 9G-Tronic transmission, this AMG Speedshift MCT replaces the torque converter coupling with a wet multi-plate start-off clutch, ensuring even more immediate response and sensation. In manual mode, the transmission stays in the selected gear and does not automatically shift up when the engine hits the limiter.
The Mercedes-Benz AMG C-Class Coupe C 63 S has a bespoke chassis compared to the regular C-Class sedan and coupe variants. To accommodate the V8 engine and its accessories such as an increased capacity cooling system, the front section has been slightly extended, resulting in a longer overhang and a 60-mm longer bonnet.
Meanwhile, wider track widths at both ends equate to not only better stability and handling, but also a visual wow factor. As such, flared wheel arches make the Mercedes-Benz AMG C-Class Coupe C 63 S 64 mm wider at the front and 66 mm wider at the rear compared to the regular C-Class coupe.
The body structure of the Mercedes-Benz AMG C-Class Coupe C 63 S meanwhile has been reinforced in key areas including a strengthened rear axle sub-frame. As for tyre sizes, the Mercedes-Benz C-Class Coupe C 63 S comes with a truly staggered wheel sizing, with 19-inch at the front and 20-inch wheels at the rear axle. Tyre sizes are 255/35R19 at the front and 285/30R20 at the rear in conventional sidewalls (non RFT).
To ensure a stable and controllable rear axle as dictated by the driver’s intentions, fitted as standard is an electronically-controlled limited-slip differential (LSD). Delivering accurate amounts of torque to the outside wheel with more grip enhances traction and stability out of corners in the Mercedes-Benz AMG C-Class Coupe C 63 S.
Electronically-controlled adaptive shock absorbers called AMG Ride Control with regular steel springs are standard, but what’s special about this facelifted 2019 Mercedes-Benz AMG C-Class Coupe C 63 S is the AMG Dynamics handling package, controlling the ESP stability system through different levels plus six AMG Dynamic Select driving modes including Race and Individual.
The amount of traction control intervention can also be manually selected through nine levels in the Mercedes-Benz AMG C-Class Coupe C 63 S. Stopping power in the Mercedes-Benz AMG C-Class Coupe C 63 S is meanwhile provided by 390 mm brake discs grabbed 6-piston calipers in front while the rear has 360 mm brake disc and single-piston calipers in red.
Power is sent to the rear wheels via a 9-speed automatic transmission. Mercedes-Benz AMG does not offer 4Matic all-wheel drive the C-Class Coupe C 63 S.