Hyundai Elantra (2016) is 249 kg (549 lbs) lighter than Kia Optima (2015).
Kia Optima (2015) is 235 mm (9.25 inch) longer, 59 mm (2.32 inch) wider, 35 mm (1.38 inch) higher and has 102 liters (3.60 ft3) bigger cargo space than Hyundai Elantra (2016).
