Clean CARFAX. CARFAX One-Owner. Individual Dravit Gray Metallic 2021 BMW 8 Series M850i xDrive Gran Coupe AWD 8-Speed Automatic Sport 4.4L V8 32V TwinPower Turbo Welcome to South Bay BMW! Part of the McKenna Auto Group, family owned and operated for over 60 years. The McKenna promise provides you not only with a great price but also great service. Come to the store directly, chat with us online or call us on the phone, you will be treated like family.