Mercedes GLE-Class (2016) is 441 mm (17.36 inch) longer, 135 mm (5.31 inch) wider, 547 mm (21.54 inch) higher and has 528 liters (18.65 ft3) bigger cargo space than Porsche Cayman (2019).
Porsche Cayman (2019) is 745 kg (1,642 lbs) lighter than Mercedes GLE-Class (2016).