Mercedes B-Class (2014) is 15 mm (0.59 inch) longer, 264 mm (10.39 inch) higher, 10 kg (22 lbs) lighter and has 324 liters (11.44 ft3) bigger cargo space than Porsche Cayman (2019).
Porsche Cayman (2019) is 14 mm (0.55 inch) wider than Mercedes B-Class (2014).
