Jaguar XJ-Series (2015) is 398 mm (15.67 inch) longer and 35 mm (1.38 inch) wider than Kia Optima Sportswagon (2015).
Kia Optima Sportswagon (2015) is 12 mm (0.47 inch) higher, 333 kg (734 lbs) lighter and has 123 liters (4.34 ft3) bigger cargo space than Jaguar XJ-Series (2015).