Mercedes X-Class (2018) is 962 mm (37.87 inch) longer, 120 mm (4.72 inch) wider, 526 mm (20.71 inch) higher and has 998 liters (35.24 ft3) bigger cargo space than Porsche Cayman (2015).
Porsche Cayman (2015) is 753 kg (1,660 lbs) lighter than Mercedes X-Class (2018).