BMW X4 (2020) is 20 mm (0.79 inch) higher, 518 kg (1,142 lbs) lighter and has 131 liters (4.63 ft3) bigger cargo space than Rolls-Royce Phantom Coupe (2016).
Rolls-Royce Phantom Coupe (2016) is 853 mm (33.58 inch) longer and 59 mm (2.32 inch) wider than BMW X4 (2020).