BMW 3 Series (2014) is 37 mm (1.46 inch) higher, 336 kg (741 lbs) lighter and has 21 liters (0.74 ft3) bigger cargo space than BMW 6 Series Gran Coupe (2018).
BMW 6 Series Gran Coupe (2018) is 385 mm (15.16 inch) longer and 85 mm (3.35 inch) wider than BMW 3 Series (2014).
