Hyundai Elantra (2018) is 264 kg (582 lbs) lighter than Kia Optima (2017).
Kia Optima (2017) is 235 mm (9.25 inch) longer, 59 mm (2.32 inch) wider, 40 mm (1.57 inch) higher and has 102 liters (3.60 ft3) bigger cargo space than Hyundai Elantra (2018).
