To estimate the price of the 2018 Ford Taurus I4 2.0L Turbo Charged SE (Base) with 255000 km mileage, I considered the following data points: 1) A 2019 Ford Taurus I4 2.0L SEL (Mid) with 169000 km sold for 55500 SAR on 2024-01-05. 2) A 2020 Ford Taurus I4 2.0L Turbocharged EcoBoost Ambient (Base) with 74000 km sold for 60500 SAR on 2024-02-07. 3) A 2020 Ford Taurus I4 2.0L Turbo Charged SEL (Mid) with 70000 km sold for 62500 SAR on 2024-04-05. 4) A 2020 Ford Taurus I4 2.0L SE (Base) with 114200 km sold for 82000 SAR on 2023-09-05. 5) A 2016 Ford Taurus V6 3.5L SE (Base) with 162000 km sold for 47000 SAR on 2024-07-18. Additionally, a similar 2018 Ford Taurus I4 2.0L Turbo Charged SE (Base) with 255000 km is listed for 55000 SAR. Considering the higher mileage and the average condition of the target car, I adjusted the price downwards from the listed price and recent selling prices of similar models.