Alfa Romeo Giulia (2018) is 13 mm (0.51 inch) wider, 231 kg (509 lbs) lighter and has 10 liters (0.35 ft3) bigger cargo space than Kia Optima Sportswagon (2017).
Kia Optima Sportswagon (2017) is 212 mm (8.35 inch) longer and 34 mm (1.34 inch) higher than Alfa Romeo Giulia (2018).