To estimate the price of the 2014 BMW X5 V8 4.4L TwinPower Turbo xDrive 50i, I first looked at the selling prices of similar cars. A similar car with 148900 km mileage sold for AED 63000 on 2024-01-16. Another similar car with a 3.0L engine sold for AED 49000 on 2024-06-06. Given the target car's mileage of 137000 km, it is in a similar range. Next, I considered offers accepted by sellers. A similar car with 147500 km had an offer accepted for AED 74000 on 2023-09-14, and another with 158000 km had an offer accepted for AED 54000 on 2023-09-22. These offers suggest a range between AED 54000 and AED 74000. Finally, I noted that a dealer sold a 3.0L variant for AED 42500 on 2024-07-10, which is lower due to the smaller engine. Considering all these data points, I estimated the market price for the target car.