To estimate the price of the 2015 Toyota Fortuner V6 4.0L VX1 (4X4) (Top) with 263,000 km mileage and average condition, I first considered the selling prices of similar cars. A 2015 Fortuner VX V6 4.0L with good condition and lower mileage (183,339 km) sold for 73,000 SAR on 8 Oct 2024. Given the target car's higher mileage and average condition, its value would be lower. A 2015 Fortuner I4 2.7L with similar mileage and average condition sold for 49,500 SAR on 18 Sep 2024. The V6 engine and higher trim of the target car would command a premium over this model. A listed price for a similar 2015 Fortuner VX V6 4.0L with 239,500 km was 55,000 SAR, delisted on 30 Jun 2024, suggesting a market expectation around this range. Considering these data points, the target car's higher mileage, and average condition, I estimate its market price to be slightly below the listed price, accounting for negotiation and condition.