Whether your driving style is sporty or relaxed, changing gears in the A-Class is always comfortable. Especially with the AUTOTRONIC continuously variable automatic transmission. It has a good feel for human nature and in Sport mode "S" will adapt to your driving style – sporty with a high engine speed and laid back with a low engine speed. Comfort mode "C" with a slightly reduced engine speed range gives you gentler acceleration and lower fuel consumption. Thanks to the continuously variable gear ratios, the A-Class fitted with AUTOTRONIC accelerates without the flow of engine power being interrupted. This means the engine can continually transfer its power to the driven wheels so that it is always working in the optimum speed range.