Ford Mustang (2017) is 56 mm (2.20 inch) wider than Kia Optima Sportswagon (2015).
Kia Optima Sportswagon (2015) is 71 mm (2.80 inch) longer, 76 mm (2.99 inch) higher, 262 kg (578 lbs) lighter and has 229 liters (8.09 ft3) bigger cargo space than Ford Mustang (2017).