Kia Optima (2016) is 445 mm (17.52 inch) longer, 26 mm (1.02 inch) wider and has 75 liters (2.65 ft3) bigger cargo space than Mercedes GLA-Class (2017).
Mercedes GLA-Class (2017) is 146 mm (5.75 inch) higher and 27 kg (60 lbs) lighter than Kia Optima (2016).
