Ford Fusion (2017) is 17 mm (0.67 inch) longer and 8 mm (0.31 inch) higher than Kia Optima Sportswagon (2015).
Kia Optima Sportswagon (2015) is 8 mm (0.31 inch) wider, 6 kg (13 lbs) lighter and has 100 liters (3.53 ft3) bigger cargo space than Ford Fusion (2017).