To estimate the price of the 2018 Nissan X-Trail I4 2.0L Diesel SV X-Treamer AWD, I started by looking at the new car prices for the 2025 model. The closest variant, the SV X-Treamer AWD, is priced at SAR 119,900. Assuming a 10% annual depreciation, the car would depreciate approximately 60% over six years (2018 to 2024). This results in a depreciation of SAR 71,940, bringing the estimated value to SAR 47,960. Considering the car is non-GCC and in average condition, I adjusted the price downwards to account for these factors, as non-GCC cars typically have lower market value in Saudi Arabia. The final estimate reflects these adjustments.