Kia Ceed Sportwagon (2017) is 15 mm (0.59 inch) higher, 178 kg (392 lbs) lighter and has 18 liters (0.64 ft3) bigger cargo space than Kia Optima (2018).
Kia Optima (2018) is 350 mm (13.78 inch) longer and 80 mm (3.15 inch) wider than Kia Ceed Sportwagon (2017).