I started by looking at the selling prices of similar cars. The first car, with 88000 km mileage and average condition, sold for 35500 SAR on 2023-10-09. The second car, with 32293 km mileage and good condition, sold for 38500 SAR on 2023-10-30. The third car, also with 32293 km mileage and good condition, sold for 47500 SAR on 2023-11-23. The fourth car, with 90000 km mileage and average condition, sold for 42000 SAR on 2023-12-01. Given the target car's mileage of 82000 km and good condition, it is reasonable to place its value between the higher end of the average condition cars and the lower end of the good condition cars. I also considered the listed prices, which ranged from 33000 SAR to 44000 SAR, but these are generally higher than actual selling prices. Therefore, I estimated the market price based on the selling prices, giving more weight to the most recent and relevant data points.