Kia Optima Sportswagon (2015) is 25 mm (0.98 inch) longer, 32 mm (1.26 inch) wider, 25 kg (55 lbs) lighter and has 23 liters (0.81 ft3) bigger cargo space than Peugeot 508 SW (2014).
Peugeot 508 SW (2014) is 17 mm (0.67 inch) higher than Kia Optima Sportswagon (2015).