Kia Optima (2015) is 26 mm (1.02 inch) longer, 466 kg (1,027 lbs) lighter and has 161 liters (5.69 ft3) bigger cargo space than Nissan CrossCabriolet (2020).
Nissan CrossCabriolet (2020) is 32 mm (1.26 inch) wider and 217 mm (8.54 inch) higher than Kia Optima (2015).