BMW X6 (2018) is 2 mm (0.08 inch) wider, 136 mm (5.35 inch) higher, 639 kg (1,409 lbs) lighter and has 269 liters (9.50 ft3) bigger cargo space than Rolls-Royce Phantom Coupe (2014).
Rolls-Royce Phantom Coupe (2014) is 689 mm (27.13 inch) longer than BMW X6 (2018).