INFINITI QX30 (2017) is 26 mm (1.02 inch) higher, 227 kg (500 lbs) lighter and has 103 liters (3.64 ft3) bigger cargo space than Kia Optima Sportswagon (2017).
Kia Optima Sportswagon (2017) is 431 mm (16.97 inch) longer and 54 mm (2.13 inch) wider than INFINITI QX30 (2017).