Audi Q8 (2018) is 104 mm (4.09 inch) wider, 144 mm (5.67 inch) higher and has 294 liters (10.38 ft3) bigger cargo space than BMW 5 Series Touring (2018).
BMW 5 Series Touring (2018) is 7 mm (0.28 inch) longer and 274 kg (604 lbs) lighter than Audi Q8 (2018).