The most relevant data point is the selling price of a 2021 Kia Rio I4 1.4L LX (Base) with 78421 km sold for SAR 37000 in July 2024. The car to be estimated has higher mileage (181000 km) and is in average condition, suggesting a lower value. Listed prices for similar cars with higher mileage (e.g., 192617 km) are around SAR 35000, but these are not actual selling prices. Considering the higher mileage and average condition, a reasonable estimate would be slightly below the selling price of the lower mileage car, around SAR 32000.