Audi Q7 (2015) is 384 mm (15.12 inch) longer, 174 mm (6.85 inch) wider, 280 mm (11.02 inch) higher and has 699 liters (24.68 ft3) bigger cargo space than Mercedes C-Class (Estate) (2017).
Mercedes C-Class (Estate) (2017) is 760 kg (1,676 lbs) lighter than Audi Q7 (2015).