Mercedes M-Class (2014) is 150 mm (5.91 inch) higher, 479 kg (1,056 lbs) lighter and has 231 liters (8.16 ft3) bigger cargo space than Rolls-Royce Phantom (2016).
Rolls-Royce Phantom (2016) is 1038 mm (40.87 inch) longer and 64 mm (2.52 inch) wider than Mercedes M-Class (2014).