BMW Series VII 730Li 730i / 730Li Class: Comes with a naturally aspirated 3.0-liter 6-cylinder engine, producing 258 horsepower. 740i / 740Li Class: Comes with a 3.0-liter 6-cylinder engine with a TwinPower Turbo, producing 315 to 320 horsepower. 750i / 750Li Class: Comes with a 4.4-liter twin-turbo V8 8-cylinder engine, producing up to 444 horsepower. Transmission: All these updated models come with an advanced 8-speed automatic transmission.