Kia Optima (2016) is 6 mm (0.24 inch) wider and 321 kg (708 lbs) lighter than Mercedes E-Class (Estate) (2017).
Mercedes E-Class (Estate) (2017) is 40 mm (1.57 inch) longer, 31 mm (1.22 inch) higher and has 160 liters (5.65 ft3) bigger cargo space than Kia Optima (2016).
