To estimate the price of the 2015 Lincoln MKX V6 3.7L 2.7T Reserve with 140000 km mileage in average condition, I considered several data points. First, the selling prices of similar cars: a 2015 Lincoln MKX Reserve 3.7L V6 with 107000 km in good condition sold for AED 42600 on 2024-06-02, and a 2015 Lincoln MKX 3.7L V6 with 92956 km in average condition sold for AED 34500 on 2024-07-03. Given the higher mileage and average condition of the target car, its value should be lower. Next, offers accepted by sellers: a similar car with 107000 km had an offer accepted at AED 47500 on 2024-05-14, and another with 92956 km had an offer accepted at AED 37500 on 2024-06-18. These offers are higher than the actual selling prices, indicating negotiation room. Lastly, listed prices: a car with 140000 km was listed for AED 29000, and others with lower mileage were listed between AED 35000 and AED 52000. Considering the higher mileage and average condition, the estimated market price should be closer to the lower end of the spectrum.