The most relevant data point is the 2018 Kia Optima I4 2.4L GDI (Base) with similar mileage and condition, sold for 31000 SAR in August 2024. This car is a base variant, while the target car is an LX (Mid) variant, which typically has a slightly higher value. The listed prices for the same variant as the target car were 44000 SAR, but these were not sold, indicating they might be higher than the market value. Considering the selling price of the base variant and the listed prices, the estimated market value for the target car should be slightly higher than 31000 SAR but lower than 44000 SAR.