Mercedes S-Class Coupe (2017) is 171 mm (6.73 inch) longer and 235 kg (518 lbs) lighter than Porsche Cayenne (2016).
Porsche Cayenne (2016) is 57 mm (2.24 inch) wider, 274 mm (10.79 inch) higher and has 270 liters (9.53 ft3) bigger cargo space than Mercedes S-Class Coupe (2017).