The AMG 4.0-litre V8 biturbo engine in the E 63 S 4MATIC+ (combined fuel consumption 11.9-11.6 l/100 km; combined CO2 emissions 273-267 g/km) continues to achieve 450 kW (612 hp) and a maximum torque of 850 Nm. It is available across a wide engine speed range from 2500 to 4500 rpm, thus conveying the feeling of effortless superiority with every accelerator pedal position. The E 63 4MATIC+ base model (combined fuel consumption 11.8-11.6 l/100 km; combined CO2 emissions 270-265 g/km) has an output of 420 kW (571 hp) and 750 Nm torque. The S version of the Saloon completes the sprint from 0 to 100 km/h in 3.4 seconds and in 3.5 seconds as the base variant. The figures for the Estate are 3.5 seconds (S version) and 3.6 seconds (base variant) respectively.

In order to ensure optimum output and response from the AMG 4.0-litre V8 engine, the two exhaust gas turbochargers feature twin-scroll technology. They reduce the exhaust gas back-pressure and optimise the gas cycle. Thanks to the standard cylinder shutoff and further measures the performance models are highly efficient. When the driver has selected the drive program "Comfort", the cylinder deactivation system is available in a wide engine speed range from 1000 to 3250 rpm. A special display in the instrument cluster indicates whether the cylinder deactivation system is in use and whether the engine is presently operating in four or eight-cylinder mode. The transition between these two operating states is immediate, fast and torque-neutral, so the occupants do not have to relinquish any comfort.

The S version is the only car in its competitive segment that is fitted with dynamic engine mounts. They solve the conflicting goals of achieving as soft a connection as possible to the drivetrain for high comfort and as rigid a connection as possible for optimum driving dynamics. The dynamic mounts are quickly and variably able to adapt their stiffness to the driving conditions and requirements. These measures enhance the vehicle's precision when driven dynamically, while the soft setting increases comfort tangibly.


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