BMW 8 Series (G16) (2019) is 293 mm (11.54 inch) longer, 17 mm (0.67 inch) wider, 11 mm (0.43 inch) higher and has 108 liters (3.81 ft3) bigger cargo space than Ford Mustang (2018).
Ford Mustang (2018) is 82 kg (181 lbs) lighter than BMW 8 Series (G16) (2019).