BMW 4 Series (2020) is 99 mm (3.90 inch) longer and 868 kg (1,914 lbs) lighter than Mercedes G-Class (2019).
Mercedes G-Class (2019) is 79 mm (3.11 inch) wider, 586 mm (23.07 inch) higher and has 227 liters (8.02 ft3) bigger cargo space than BMW 4 Series (2020).