Audi Q8 (2019) is 308 mm (12.13 inch) longer, 184 mm (7.24 inch) wider, 298 mm (11.73 inch) higher and has 508 liters (17.94 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2017).
Mercedes C-Class (Coupe) (2017) is 625 kg (1,378 lbs) lighter than Audi Q8 (2019).