yet offer four cargo-floor tie-downs, push-button ignition, a retractable cargo cover, 1.5 turbo are the engines of choice. as well as anti-lock brakes, but otherwise these two engines are quite different in character. although it's essentially a top-performance model based on the Coupe and Convertible.Special xDrive versions of the Sedan and Sports Wagon offer all-weather capability to the 3-Series air conditioning.