BMW 3 Series Gran Turismo (2021) is 42 mm (1.65 inch) longer, 115 mm (4.53 inch) higher, 232 kg (511 lbs) lighter and has 197 liters (6.96 ft3) bigger cargo space than Ford Mustang (2015).
Ford Mustang (2015) is 87 mm (3.43 inch) wider than BMW 3 Series Gran Turismo (2021).