Audi Q8 (2018) is 10 mm (0.39 inch) wider, 68 mm (2.68 inch) higher, 519 kg (1,144 lbs) lighter and has 405 liters (14.30 ft3) bigger cargo space than Rolls-Royce Phantom (2014).
Rolls-Royce Phantom (2014) is 1092 mm (42.99 inch) longer than Audi Q8 (2018).