Mercedes GLA-Class (2018) is 45 mm (1.77 inch) higher, 1156 kg (2,549 lbs) lighter and has 124 liters (4.38 ft3) bigger cargo space than Rolls-Royce Phantom Coupe (2014).
Rolls-Royce Phantom Coupe (2014) is 1202 mm (47.32 inch) longer and 153 mm (6.02 inch) wider than Mercedes GLA-Class (2018).