Audi A8 (2015) is 239 mm (9.41 inch) longer, 52 mm (2.05 inch) wider, 57 mm (2.24 inch) higher and has 90 liters (3.18 ft3) bigger cargo space than Mercedes S-Class Coupe (2020).
Mercedes S-Class Coupe (2020) is 60 kg (132 lbs) lighter than Audi A8 (2015).