Citroen DS5 (2020) is 11 mm (0.43 inch) wider, 35 mm (1.38 inch) higher, 322 kg (710 lbs) lighter and has 25 liters (0.88 ft3) bigger cargo space than Kia Optima Sportswagon (2018).
Kia Optima Sportswagon (2018) is 325 mm (12.80 inch) longer than Citroen DS5 (2020).