BMW 3 Series Gran Turismo (2021) is 37 mm (1.46 inch) longer, 113 mm (4.45 inch) higher, 232 kg (511 lbs) lighter and has 189 liters (6.67 ft3) bigger cargo space than Ford Mustang (2019).
Ford Mustang (2019) is 86 mm (3.39 inch) wider than BMW 3 Series Gran Turismo (2021).