Kia Optima Sportswagon (2015) is 360 mm (14.17 inch) longer, 20 mm (0.79 inch) wider and has 67 liters (2.37 ft3) bigger cargo space than Lexus UX (2020).
Lexus UX (2020) is 50 mm (1.97 inch) higher and 50 kg (110 lbs) lighter than Kia Optima Sportswagon (2015).