Audi Q7 (2017) is 366 mm (14.41 inch) longer, 159 mm (6.26 inch) wider, 298 mm (11.73 inch) higher and has 520 liters (18.36 ft3) bigger cargo space than Mercedes C-Class (Estate) (2014).
Mercedes C-Class (Estate) (2014) is 565 kg (1,246 lbs) lighter than Audi Q7 (2017).