Audi A7 (2015) is 282 mm (11.10 inch) longer, 100 mm (3.94 inch) wider, 11 mm (0.43 inch) higher and has 179 liters (6.32 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2017).
Mercedes C-Class (Coupe) (2017) is 355 kg (783 lbs) lighter than Audi A7 (2015).