To estimate the price of the 2018 Ford Expedition V6 3.5L Turbo Charged XLT with 207000 km mileage, I considered several data points. First, I looked at the selling prices of similar cars. A 2016 XLT (Base) with 190000 km sold for 45000 SAR, and a 2016 EL XLT (Base+) with 93000 km sold for 61000 SAR. These prices suggest a depreciation trend for older models. For newer models, a 2019 Limited (Top) with 114000 km sold for 125000 SAR, and a 2020 XLT 4WD (Mid) with 95000 km sold for 138000 SAR. Given the higher mileage and average condition of the target car, its value would be lower than these newer models. Next, I reviewed listed prices of similar cars. A 2018 XLT (Base) with 207000 km was listed for 89500 SAR, and a 2016 XLT (Base) with similar mileage was listed between 45000 and 75000 SAR. Considering the depreciation and the condition, I estimated the market price accordingly.