The idea is to combine the driving dynamics of a 6 Series with the X Series-styled body done as a coupe with four doors. It comes in two models, xDrive50i and the xDrive35i, both of which are all-wheel drive. The X6 comes with either a new 4.4-liter, twin-turbo V8 in the xDrive50i or a 3.0-liter, twin-turbo, inline six-cylinder in the xDrive35i. The V8 produces 400 horsepower and 450 lb.-ft. of torque while the V6 serves up 300 horsepower and 300 lb.-ft. of twist. Power is fed through a six-speed automatic transmission with a sport shift mode. The X6 is scheduled to go on sale spring 2008.