BMW 8 Series (G14) (2020) is 3 mm (0.12 inch) wider and 212 kg (467 lbs) lighter than Mercedes S-Class (2018).
Mercedes S-Class (2018) is 411 mm (16.18 inch) longer, 151 mm (5.94 inch) higher and has 150 liters (5.30 ft3) bigger cargo space than BMW 8 Series (G14) (2020).