Mercedes CLA-Class (2018) is 172 mm (6.77 inch) longer, 168 mm (6.61 inch) higher and has 286 liters (10.10 ft3) bigger cargo space than Porsche 718 Cayman (2021).
Porsche 718 Cayman (2021) is 25 mm (0.98 inch) wider and 34 kg (75 lbs) lighter than Mercedes CLA-Class (2018).