Audi Q5 (2017) is 315 mm (12.40 inch) higher, 189 kg (417 lbs) lighter and has 130 liters (4.59 ft3) bigger cargo space than BMW 8 Series (G15) (2018).
BMW 8 Series (G15) (2018) is 180 mm (7.09 inch) longer and 13 mm (0.51 inch) wider than Audi Q5 (2017).