To estimate the price of the 2018 Ford F150 V8 5.0L V6 Crew Cab XL (Base) with 258000 km mileage, I considered the following data points: 1. Selling prices of similar cars: A 2017 Ford F150 V6 3.5L EcoBoost Crew Cab Lariat (Mid+) with 215000 km sold for 55000 SAR on 2024-07-10. This car is a year older and has a different engine and trim but provides a baseline. 2. Listed prices of similar cars: A 2018 Ford F150 V8 5.0L V6 Crew Cab XL (Base) with the same mileage is listed for 93000 SAR. This is the exact same model and trim, providing a strong reference point. Another 2019 Ford F150 V8 5.0L Regular Cab XLT (Base+) with 261500 km is listed for 76000 SAR, which is a newer model but with similar mileage. 3. Depreciation logic: Assuming a 10% depreciation per year, a new car price would be significantly higher, but the high mileage and average condition of the car in question would reduce its value. Considering these factors, the estimated market price is derived by balancing the lower selling price of a similar older model and the higher listed price of the exact model.