Mercedes C-Class (Estate) (2017) is 244 mm (9.61 inch) longer, 7 mm (0.28 inch) wider, 187 mm (7.36 inch) higher and has 306 liters (10.81 ft3) bigger cargo space than Porsche 718 Cayman (2021).
Porsche 718 Cayman (2021) is 144 kg (317 lbs) lighter than Mercedes C-Class (Estate) (2017).