To estimate the price of the 2023 Changan Alsvin I4 1.5L Advanced (Top) with 82000 km mileage and average condition, I considered the following data points: 1. Selling prices of similar cars: A similar car with 40000 km and average condition sold for 31000 SAR on 2024-01-17. Another similar car with 45000 km and average condition sold for 32500 SAR on 2024-06-30. 2. Listed prices of similar cars: A car with 70000 km was listed for 31500 SAR, and another with 53000 km was listed for 28500 SAR. Considering the higher mileage (82000 km) and average condition of the target car, I adjusted the price downwards from the average selling prices of 31000 SAR and 32500 SAR. The listed prices also support a lower estimate due to higher mileage.