Mercedes S-Class Coupe (2017) is 640 kg (1,411 lbs) lighter and has 86 liters (3.04 ft3) bigger cargo space than Rolls-Royce Phantom Coupe (2015).
Rolls-Royce Phantom Coupe (2015) is 586 mm (23.07 inch) longer, 90 mm (3.54 inch) wider and 184 mm (7.24 inch) higher than Mercedes S-Class Coupe (2017).