BMW 3 Series Gran Turismo (2021) is 62 mm (2.44 inch) longer, 1015 kg (2,238 lbs) lighter and has 34 liters (1.20 ft3) bigger cargo space than Mercedes G-Class (2017).
Mercedes G-Class (2017) is 38 mm (1.50 inch) wider and 445 mm (17.52 inch) higher than BMW 3 Series Gran Turismo (2021).