Audi Q7 (2016) is 391 mm (15.39 inch) longer, 173 mm (6.81 inch) wider, 295 mm (11.61 inch) higher and has 591 liters (20.87 ft3) bigger cargo space than Mazda 3 (Sedan) (2018).
Mazda 3 (Sedan) (2018) is 667 kg (1,470 lbs) lighter than Audi Q7 (2016).