BMW 3 Series Gran Turismo (2014) is 40 mm (1.57 inch) longer, 114 mm (4.49 inch) higher, 77 kg (170 lbs) lighter and has 196 liters (6.92 ft3) bigger cargo space than Ford Mustang (2015).
Ford Mustang (2015) is 88 mm (3.46 inch) wider than BMW 3 Series Gran Turismo (2014).