Kia Niro EV (2018) is 90 mm (3.54 inch) higher, 78 kg (172 lbs) lighter and has 84 liters (2.97 ft3) bigger cargo space than Kia Optima Sportswagon (2020).
Kia Optima Sportswagon (2020) is 480 mm (18.90 inch) longer and 55 mm (2.17 inch) wider than Kia Niro EV (2018).