Mercedes CLS-Class (2014) is 85 mm (3.35 inch) longer and 410 kg (904 lbs) lighter than Porsche Cayenne (2014).
Porsche Cayenne (2014) is 72 mm (2.83 inch) wider, 271 mm (10.67 inch) higher and has 150 liters (5.30 ft3) bigger cargo space than Mercedes CLS-Class (2014).