Audi Q7 (2015) is 443 mm (17.44 inch) longer, 173 mm (6.81 inch) wider, 308 mm (12.13 inch) higher and has 694 liters (24.51 ft3) bigger cargo space than BMW 3 Series Touring (2018).
BMW 3 Series Touring (2018) is 601 kg (1,325 lbs) lighter than Audi Q7 (2015).