Ford Flex (2020) is 270 mm (10.63 inch) longer, 396 mm (15.59 inch) wider, 256 mm (10.08 inch) higher and has 783 liters (27.65 ft3) bigger cargo space than Kia Optima Sportswagon (2018).
Kia Optima Sportswagon (2018) is 202 kg (445 lbs) lighter than Ford Flex (2020).