They include the latest evolution of BMW's turbocharged 3.0 - liter N55 gasoline engine producing 316 hp and 332 lb - ft of
torque in the 640i Gran Coupe, and the
gutsy turbocharged 3.0 - liter N57
diesel unit with 309 hp and 464 lb - ft of
torque in the 640d Gran Coupe driven here.