Nissan CrossCabriolet (2014) is 451 mm (17.76 inch) longer, 92 mm (3.62 inch) wider, 389 mm (15.31 inch) higher and has 187 liters (6.60 ft3) bigger cargo space than Porsche Cayman (2017).
Porsche Cayman (2017) is 606 kg (1,336 lbs) lighter than Nissan CrossCabriolet (2014).