Audi Q7 (2015) is 794 mm (31.26 inch) longer, 204 mm (8.03 inch) wider, 304 mm (11.97 inch) higher and has 848 liters (29.95 ft3) bigger cargo space than Mercedes A-Class (2014).
Mercedes A-Class (2014) is 960 kg (2,116 lbs) lighter than Audi Q7 (2015).