I focused on the selling prices of similar cars, especially those with the same variant and condition. The most relevant data point is the 2015 Nissan X-Trail 2.5L I4 SV with average condition and similar mileage (131300 km) sold for AED 38900 on 2024-01-13. Another similar car with slightly higher mileage (131600 km) sold for AED 41000 on 2023-09-03. A car with higher mileage (172000 km) sold for AED 28000 on 2023-06-24, indicating a lower price due to higher mileage. Considering the target car's mileage of 133720 km and average condition, I estimate the price to be slightly lower than AED 38900 due to the time elapsed since the last sale and market depreciation.