BMW 3 Series Gran Turismo (2020) is 60 mm (2.36 inch) longer, 860 kg (1,896 lbs) lighter and has 33 liters (1.17 ft3) bigger cargo space than Mercedes G-Class (2014).
Mercedes G-Class (2014) is 39 mm (1.54 inch) wider and 446 mm (17.56 inch) higher than BMW 3 Series Gran Turismo (2020).