I started by examining the selling prices of similar cars. The most relevant data point is the 2013 Ford Expedition V8 5.4L XLT (Base) with 226463 km mileage, sold for 26000 SAR on 2024-09-06. This car is very similar in variant and condition to the target car. Another similar car with 271000 km mileage sold for 31000 SAR on 2024-01-02, but it has higher mileage. A car with 233000 km and a mid variant sold for 31000 SAR on 2024-04-20, which suggests a slightly higher value for mid variants. The car with 273000 km sold for 35500 SAR on 2023-09-05, but it was in good condition, which likely increased its value. Considering the target car's average condition and mileage of 230011 km, the selling price of 26000 SAR is a strong indicator. I also looked at listed prices, where similar cars were listed between 28000 SAR and 42000 SAR, but these are generally higher than actual selling prices. Therefore, the most accurate estimate is around 26000 SAR, considering the recent sale of a very similar car.