The BMW 3-Series began production back in 1975 and is one of the German automaker's luxury sedans. The 2012 model year will mark the 3-Series' sixth generation since its birth and will incorporate all of the current versions for the luxury car: 2-door coupe and convertible, 4-door saloon, 5-door touring, and 5 door liftback. The new 3-series is expected to be powered with new aluminum four-cylinder gasoline engines ranging from 135 to 220 horsepower. The current model is powered by a choice of four different engine. The 3.0L I-6 produces 230hp and 200 lb-ft of torque, while the 3.0L twin turbo diesel gets 265hp and 425lb-ft of torque. Another option is the 3.0L twin turbo I-6 getting 300hp and 300 lb-ft of torque, and the final engine option is a 4.0L V8 producing 414hp and 295 lb-ft of torque. Engines can be mated to a six-speed manual transmission or a six- or seven-speed automatic.