RACE START is only available in AMG vehicles.

RACE START enables optimal acceleration from a standing start. The precondition for this is a suitable high-grip road surface.

WARNING
RACE START is only available when SPORT handling mode is activated. SPORT handling mode only stabilizes the vehicle to a limited extent in the event of swerving or wheelspin.
RACE START should only be used on specially designated roads. Always adapt your speed and driving style to the prevailing road and weather conditions.