BMW 8 Series (G16) (2020) is 490 mm (19.29 inch) longer, 162 mm (6.38 inch) wider and has 109 liters (3.85 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2014).
Mercedes C-Class (Coupe) (2014) is 23 mm (0.91 inch) higher and 304 kg (670 lbs) lighter than BMW 8 Series (G16) (2020).