Audi Q7 (2018) is 366 mm (14.41 inch) longer, 159 mm (6.26 inch) wider, 331 mm (13.03 inch) higher and has 654 liters (23.10 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2017).
Mercedes C-Class (Coupe) (2017) is 510 kg (1,124 lbs) lighter than Audi Q7 (2018).