Kia Forte (Hatchback) (2018) is 217 kg (478 lbs) lighter than Kia Optima (2015).
Kia Optima (2015) is 504 mm (19.84 inch) longer, 79 mm (3.11 inch) wider, 15 mm (0.59 inch) higher and has 82 liters (2.90 ft3) bigger cargo space than Kia Forte (Hatchback) (2018).