We have rarely seen such a comprehensive series. BMW's 3 Series comes in four versions: sedan, coupe, station, and convertible. The choice of engines goes from 200 horsepower to 414 for the M versions, which offer astounding performance and control. In a few months, the 335d will be equipped with a diesel engine. Depending on the model, the automatic transmission has either six or seven speeds, while the manual has six. And let us not forget that some models get an all-wheel drive system!