Audi S7 (2018) is 136 mm (5.35 inch) longer, 48 mm (1.89 inch) wider and has 110 liters (3.88 ft3) bigger cargo space than Mercedes E-Class (Coupe) (2020).
Mercedes E-Class (Coupe) (2020) is 10 mm (0.39 inch) higher and 390 kg (860 lbs) lighter than Audi S7 (2018).