To estimate the price of the 2023 Kia Carens I4 1.5L 2.0L (Top) with 18000 km mileage, I started by looking at the new car prices for different variants. The closest variant to the target car is the 1.5L EX, which is priced at SAR 98900 for a 2025 model. Assuming a 10% annual depreciation, the 2023 model would have depreciated by approximately 20%, bringing its value to around SAR 79120. Additionally, a similar 2023 Kia Carens I4 1.6L (Base) with 15000 km is listed for SAR 77500. Considering the target car is a higher trim (Top) and has slightly more mileage, I adjusted the price upwards slightly from the base model listing.