To estimate the price of the 2014 BMW X5 Xdrive 35i 3.0L TC I6 with 186000 km mileage in average condition, I primarily considered the selling prices of similar cars. The closest match is a 2014 BMW X5 3.0TC I6 with 180950 km sold for AED 49000 on 2024-06-06. Another relevant data point is an offer accepted for a similar car with 183400 km at AED 48000 on 2024-05-20. The listed prices for similar cars range from AED 49000 to AED 72000, but these are generally higher than actual selling prices. Considering the selling prices and accepted offers, I estimate the market price to be slightly lower than the highest selling price due to the higher mileage of the target car.