Jaguar XF Sportbrake (2015) is 100 mm (3.94 inch) longer, 20 mm (0.79 inch) wider and has 39 liters (1.38 ft3) bigger cargo space than Kia Optima (2016).
Kia Optima (2016) is 8 mm (0.31 inch) higher and 265 kg (584 lbs) lighter than Jaguar XF Sportbrake (2015).