Kia Optima (2018) is 199 mm (7.83 inch) longer, 540 kg (1,190 lbs) lighter and has 160 liters (5.65 ft3) bigger cargo space than Mercedes GLC-Class (2017).
Mercedes GLC-Class (2017) is 30 mm (1.18 inch) wider and 189 mm (7.44 inch) higher than Kia Optima (2018).
