http://www.bmwusa.com/Standard/Content/Vehicles/2008/6/650iConvertible/

Written by boris on June 5, 2008

Thats THE car:

The 6.0-liter, V-12 engine introduces a higher level of power and performance in a production BMW. Generating 438 horsepower at 6000 rpm and 444 lb.-ft. of torque at 3950 rpm*, this awe-inspiring V-12 sets a new standard for smooth running with rapid acceleration and deep reserves of power. The engine incorporates Direct Fuel Injection. Instead of injecting fuel before the intake valves, fuel is delivered directly into each cylinder, enhancing fuel efficiency and emission control. Helping the V-12 show marked improvement over past models, Direct Fuel Injection impressively combines innovative engine technology, including Valvetronic, Double VANOS, a compression ratio of 11.5:1, and more.