Mercedes GLK-Class (2018) is 78 mm (3.07 inch) longer, 37 mm (1.46 inch) wider, 429 mm (16.89 inch) higher and has 266 liters (9.39 ft3) bigger cargo space than Porsche 718 Cayman (2021).
Porsche 718 Cayman (2021) is 429 kg (946 lbs) lighter than Mercedes GLK-Class (2018).