Ford Mustang (2020) is 55 mm (2.17 inch) wider than Kia Optima Sportswagon (2017).
Kia Optima Sportswagon (2017) is 66 mm (2.60 inch) longer, 74 mm (2.91 inch) higher, 97 kg (214 lbs) lighter and has 108 liters (3.81 ft3) bigger cargo space than Ford Mustang (2020).