BMW 8 Series (G14) (2020) is 165 mm (6.50 inch) longer and 535 kg (1,179 lbs) lighter than Mercedes G-Class (2018).
Mercedes G-Class (2018) is 29 mm (1.14 inch) wider, 630 mm (24.80 inch) higher and has 317 liters (11.19 ft3) bigger cargo space than BMW 8 Series (G14) (2020).