Audi Q8 (2018) is 98 mm (3.86 inch) wider, 150 mm (5.91 inch) higher and has 364 liters (12.85 ft3) bigger cargo space than BMW 5 Series Gran Turismo (2016).
BMW 5 Series Gran Turismo (2016) is 5 mm (0.20 inch) longer and 260 kg (573 lbs) lighter than Audi Q8 (2018).