Welcome the all-new BMW 4 Series Convertible which is visibly larger in width, track and wheelbase than the BMW 3 Series Convertible. In addition to the standard model, three specially equipped lines and an M Sport package are also available: the Sport Line, Modern Line and Luxury Line versions. At model launch the Bimmer can be delivered with an in-line 6-cylinder engine (BMW 435i Convertible), a 4-cylinder (BMW 428i Convertible) and a 4-cylinder diesel (BMW 420d Convertible). They range from 184 horsepower to 306 horsepower and feature the latest BMW TwinPower Turbo technology.