BMW X6 (2018) is 2 mm (0.08 inch) wider, 104 mm (4.09 inch) higher, 510 kg (1,124 lbs) lighter and has 266 liters (9.39 ft3) bigger cargo space than Rolls-Royce Phantom Coupe (2015).
Rolls-Royce Phantom Coupe (2015) is 689 mm (27.13 inch) longer than BMW X6 (2018).