Mercedes GL-Class (2017) is 9 mm (0.35 inch) wider, 209 mm (8.23 inch) higher, 114 kg (251 lbs) lighter and has 221 liters (7.80 ft3) bigger cargo space than Rolls-Royce Phantom (2014).
Rolls-Royce Phantom (2014) is 945 mm (37.20 inch) longer than Mercedes GL-Class (2017).