Mercedes GL-Class (2015) is 8 mm (0.31 inch) wider, 212 mm (8.35 inch) higher, 69 kg (152 lbs) lighter and has 227 liters (8.02 ft3) bigger cargo space than Rolls-Royce Phantom (2017).
Rolls-Royce Phantom (2017) is 696 mm (27.40 inch) longer than Mercedes GL-Class (2015).