The AMG 4.0-litre V-8 Biturbo engine in the S 63 4MATIC+ comes exclusively in the highest performance stage to date rated at 450 kW (612 hp). The peak torque of 900 Nm also represents a new maximum. It is available across a wide rev range between 2750 and 4500 rpm, and thereby provides a sense of superior poise. The sprint from standstill to 100 km/h takes just 3.5 seconds, faster than in any other performance luxury saloon, and the dynamic push in the back does not end before reaching the electronically limited top speed of 250 km/h (with AMG Driver's Package: 300 km/h).
The further advanced AMG 4.0-litre V-8 Biturbo engine utilises well-proven twin-turbo forced induction, with the two chargers not located outside on the cylinder banks, but rather between them in the V of the cylinders. The advantages of the "hot inner V" are a compact engine design, an immediate response from the turbochargers and low exhaust emissions thanks to optimum airflow to the close-coupled catalytic converters.
Mercedes-AMG S 63 4MATIC+ long wheelbase
Two twin-scroll turbochargers provide even better fresh-mixture cylinder charge. The results are a higher output, more torque already at low engine speeds, and a very spontaneous throttle response.
'AMG Cylinder Management' cylinder deactivation system
For maximum efficiency, Mercedes-AMG equipped the V-8 engine in the S 63 4MATIC+ with the AMG Cylinder Management cylinder deactivation system. In the partial-load range, cylinders two, three, five and eight are deactivated, which significantly lowers the fuel consumption. With a combined fuel consumption of 8.9 litres and combined CO2 emissions of 203 grams per kilometre, the new S 63 4MATIC+ is among the leaders in its competitive segment.
When the driver has selected the "Comfort" transmission driving mode, the cylinder deactivation system is available in the wide engine speed range from 1000 to 3250 rpm. The AMG main menu on the instrument cluster informs the driver whether the cylinder deactivation system is in use and whether the engine is presently operating in the partial or full-load range. The transition from four to eight-cylinder operation is immediate, fast and imperceptible, so that the passengers do not experience any loss of comfort whatsoever.
Short shift times, high efficiency: the AMG SPEEDSHIFT MCT 9-speed sports transmission
For the first time, the S 63 is fitted with the AMG SPEEDSHIFT MCT 9-speed sports transmission, which impresses with extremely short shift times, fast multiple downshifts and a rev-matching function. A wet start-off clutch replaces the torque converter of the production model. This saves weight and improves the response to the driver's accelerator pedal input, particularly during acceleration and load changes.
The extremely high torque of the S 65 is transferred by the proven AMG SPEEDSHIFT 7G-TRONIC PLUS transmission. It delivers convincing tailor-made dynamics and high variability. Whether automatic or initiated by the driver using the steering wheel paddle shifters, upshifts or downshifts are affected quickly and instantly. Especially in the "Sport+“ and in manual driving modes, the transmission is very fast and responsive.