Hyundai Santa Fe (2021) is 40 mm (1.57 inch) wider, 245 mm (9.65 inch) higher and has 321 liters (11.34 ft3) bigger cargo space than Kia Optima (2015).
Kia Optima (2015) is 70 mm (2.76 inch) longer and 461 kg (1,016 lbs) lighter than Hyundai Santa Fe (2021).