Mercedes SLK-Class (2014) is 1135 kg (2,502 lbs) lighter and has 21 liters (0.74 ft3) bigger cargo space than Rolls-Royce Phantom Coupe (2015).
Rolls-Royce Phantom Coupe (2015) is 1478 mm (58.19 inch) longer, 170 mm (6.69 inch) wider and 295 mm (11.61 inch) higher than Mercedes SLK-Class (2014).