Hyundai Sonata (2017) is 4 mm (0.16 inch) wider, 6 mm (0.24 inch) higher, 241 kg (531 lbs) lighter and has 22 liters (0.78 ft3) bigger cargo space than Kia Optima Sportswagon (2017).
Kia Optima Sportswagon (2017) is 1 mm (0.04 inch) longer than Hyundai Sonata (2017).
