Jaguar XK-Series (2016) is 32 mm (1.26 inch) wider and 231 kg (509 lbs) lighter than Kia Optima Sportswagon (2018).
Kia Optima Sportswagon (2018) is 65 mm (2.56 inch) longer, 150 mm (5.91 inch) higher and has 126 liters (4.45 ft3) bigger cargo space than Jaguar XK-Series (2016).