Jaguar XJ-Series (2015) is 398 mm (15.67 inch) longer and 35 mm (1.38 inch) wider than Kia Optima Sportswagon (2017).
Kia Optima Sportswagon (2017) is 12 mm (0.47 inch) higher, 168 kg (370 lbs) lighter and has 10 liters (0.35 ft3) bigger cargo space than Jaguar XJ-Series (2015).