Kia Optima Sportswagon (2015) is 602 mm (23.70 inch) longer, 56 mm (2.20 inch) wider, 13 mm (0.51 inch) higher and has 83 liters (2.93 ft3) bigger cargo space than Peugeot 308 (2017).
Peugeot 308 (2017) is 230 kg (507 lbs) lighter than Kia Optima Sportswagon (2015).