Mercedes GLS-Class (2019) is 956 mm (37.64 inch) longer, 156 mm (6.14 inch) wider, 528 mm (20.79 inch) higher and has 205 liters (7.24 ft3) bigger cargo space than Porsche 718 Cayman (2014).
Porsche 718 Cayman (2014) is 1004 kg (2,213 lbs) lighter than Mercedes GLS-Class (2019).