BMW 3 Series Gran Turismo (2014) is 18 mm (0.71 inch) higher, 410 kg (904 lbs) lighter and has 20 liters (0.71 ft3) bigger cargo space than Mercedes S-Class (2014).
Mercedes S-Class (2014) is 421 mm (16.57 inch) longer and 71 mm (2.80 inch) wider than BMW 3 Series Gran Turismo (2014).