Kia Optima Sportswagon (2017) is 462 mm (18.19 inch) longer and 74 mm (2.91 inch) wider than Mercedes B-Class (2014).
Mercedes B-Class (2014) is 87 mm (3.43 inch) higher, 320 kg (705 lbs) lighter and has 46 liters (1.62 ft3) bigger cargo space than Kia Optima Sportswagon (2017).
