Audi Q7 (2015) is 81 mm (3.19 inch) higher, 205 kg (452 lbs) lighter and has 651 liters (22.99 ft3) bigger cargo space than Rolls-Royce Phantom (2018).
Rolls-Royce Phantom (2018) is 903 mm (35.55 inch) longer and 33 mm (1.30 inch) wider than Audi Q7 (2015).