I started by examining the selling prices of similar cars. The most relevant data point is the 2012 BMW X5 Xdrive 35i 3.0L TC I6 with 203,000 km sold for AED 27,000 on 2024-05-29, which closely matches the car in question. Another similar car, a 2012 BMW X5 Xdrive 35i I6 3.0L Twin Turbo with 153,500 km, sold for AED 33,500 on 2024-08-30. Given the higher mileage of the car to be estimated, its value should be closer to the lower end of these prices. The accepted offer of AED 27,000 for a similar car with 203,000 km further supports this. Listed prices are generally higher, with a similar car listed for AED 29,000 but not sold. Considering these factors, the estimated market price is around AED 27,000.