Kia Optima Sportswagon (2017) is 169 mm (6.65 inch) longer, 50 mm (1.97 inch) wider, 61 mm (2.40 inch) higher and has 84 liters (2.97 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2017).
Mercedes C-Class (Coupe) (2017) is 165 kg (364 lbs) lighter than Kia Optima Sportswagon (2017).