BMW 3 Series Gran Turismo (2021) is 22 mm (0.87 inch) longer and 570 kg (1,257 lbs) lighter than Mercedes M-Class (2015).
Mercedes M-Class (2015) is 97 mm (3.82 inch) wider, 279 mm (10.98 inch) higher and has 169 liters (5.97 ft3) bigger cargo space than BMW 3 Series Gran Turismo (2021).