Detroit Preview: 2011 BMW 740i with 315HP Twin-Turbo Straight Six

For the first time in many years, BMW will offer American consumers the choice of a six-cylinder engine for its flagship 7-Series sedan. The U.S.-Spec 740i and its long-wheelbase sibling, the 740iL, with make their North American premiere at the 2010 Detroit motor show next January, with sales set to follow in Spring of the same year.

Both models are powered by BMW's 3.0-liter twin-turbocharged inline-six (and not the 2011 535i's new twin-scroll turbocharged six) producing 315 horsepower at 5800 rpm and 330 lb-ft of torque from 1,600-4,500 rpm in U.S.-spec form.

Power is delivered to the rear wheels through BMW's 6-speed automatic transmission.

Buyers will have a choice of several options and packages to upgrade the 2011 740i and 740iL including the M Sport, Driver Assistance, Luxury Seating, Rear Entertainment, and even the BMW Individual Composition Package.