BMW today released new details on its much-rumored N54 Bi-Turbo Engine. The motor is expected to appear in the 2007 BMW 335i and 2007 BMW 335ci (coupe). The engine has an output of 306 horsepower and maximum torque of 295 lbs.-ft (400 Nm). BMW said it has already tested a 3-Series sedan with the engine, and achieved a 0-62mph time of 5.7 seconds. BMW said the engine is relatively lightweight ― about 70kg less than its 4.0-liter V8 engine. According to the automaker, the 3.0-liter engine has little or no turbo lag, thanks to two small turbos instead of one large one. Maximum torque is achieved between 1500 and 5800 rpm. What we know so far: BMW will show its new E92 3-Series coupe at the Geneva Motor Show along with this new engine. What's no entirely clear is whether this engine will make it to North America. Recent rumors suggested this turbo engine would be exclusive to Europe, and a different naturally-aspirated powerplant would drive the 335 in North America.
