To estimate the price of the 2018 BMW X3 I4 2.0L Turbocharged 30i with 186995 km, I first looked at the selling prices of similar cars. The 2018 BMW X3 30i M sport with 71000 km sold for AED 155000 on 2023-10-20, and the 2019 BMW X3 30i M Kit with 99600 km sold for AED 122500 on 2024-07-07. Given the higher mileage of the target car, its value would be lower. Next, I considered the listed prices of similar cars. The closest match is a 2018 BMW X3 I4 2.0L Turbocharged with 186995 km listed for AED 70000. Other 2019 models with similar mileage are listed between AED 75000 and AED 84000. Considering the higher mileage and the fact that listed prices are generally higher than selling prices, I adjusted the estimate downwards. Finally, I factored in the depreciation and condition of the car to arrive at a fair market price.