BMW 8 Series (G14) (2020) is 132 mm (5.20 inch) longer and 92 mm (3.62 inch) wider than Mercedes C-Class (Estate) (2017).
Mercedes C-Class (Estate) (2017) is 118 mm (4.65 inch) higher, 338 kg (745 lbs) lighter and has 140 liters (4.94 ft3) bigger cargo space than BMW 8 Series (G14) (2020).