Ford Mustang (2020) is 55 mm (2.17 inch) wider and 14 kg (31 lbs) lighter than Kia Optima Sportswagon (2018).
Kia Optima Sportswagon (2018) is 66 mm (2.60 inch) longer, 74 mm (2.91 inch) higher and has 108 liters (3.81 ft3) bigger cargo space than Ford Mustang (2020).
