To estimate the price of the 2023 Changan CS85 I4 2.0L Turbocharged Limited (Top) with 15500 km mileage, I considered the following data points: 1) Selling prices of similar cars: A car with 3000 km sold for 79000 SAR on 2024-06-05, a car with 40000 km sold for 74800 SAR on 2024-07-12, and a car with 300 km in average condition sold for 82000 SAR on 2024-08-01. 2) Listed prices of similar cars: A car with 15500 km was listed for 81000 SAR and delisted on 2024-04-24, a car with 13000 km was listed for 81000 SAR and delisted on 2024-04-09, and a car with 9000 km was listed for 80000 SAR and delisted on 2024-09-20. Considering the selling prices, the car with 3000 km sold for 79000 SAR is the closest match. Adjusting for the higher mileage of 15500 km, I estimate a slight decrease in value. The listed prices also support a range around 80000 SAR. Therefore, I estimate the market price to be slightly lower than the 79000 SAR selling price due to higher mileage.