The short-throw action and optimum matching of engine power, transmission ratios and final drive ratio provide optimum conditions for sporty yet fuel-efficient driving. In addition, a display in the instrument cluster supports a particularly thrifty driving mode.

The ECO start/stop function ensures that the engine is switched off temporarily at traffic lights and in traffic jams, thus saving fuel.

The new consumption- and efficiency-optimised 7G-TRONIC PLUS automatic transmission is the new highlight of Mercedes-Benz's transmission technology. Lower fuel consumption and virtually imperceptible gearshifts make for comfortable travel on all lengths of journey.

The new AMG SPEEDSHIFT MCT 7-speed sports transmission with which the C 63 AMG is equipped, impresses through its great diversity and efficiency. With AMG aluminium steering wheel gearshift paddles, four driving programmes and the Race-Start function, the new 7-speed automatic transmission makes a 10-percent consumption reduction over the preceding model possible, accompanied by enhanced driving dynamics and greater efficiency.

The "S" (Sport), "S+" (Sport Plus), "C" (Comfort) and "M" (Manual) modes each have different gear-change characteristics and speeds:

Gear changes in "S" and "S+" modes are around 20 or 40 percent swifter than in "C" mode respectively – while in "M" mode gear changes take just 100 milliseconds, making them some 50 percent faster. A push of a button activates the desired driving mode: distinctly sporty or more comfort-oriented.

There is the automatic double-declutching function when downshifting, which provides an emotional sound experience as well as reducing power-off effects. This function has a positive effect when braking on the approach to bends in particular.