Clean CARFAX. Alpine White 2017 BMW 6 Series 640i xDrive Gran Coupe AWD 8-Speed Automatic Sport 3.0L I62 free oil changes with every vehicle purchase 1928 CityHighway MPGReviews Distinctive styling for a sedan of its size excellent performance with either engine option modern interior design trimmed with excellent materials newly updated tech interface is easier to use. Source Edmunds Solid performance from the base six-cylinder engine inspiring sounds and thrust from the optional V8 the interior is impeccably appointed and well constructed the convertibles clever glass rear window also serves as a wind blocker cargo capacity is surprisingly good for a coupe. Source Edmunds