The car to be estimated is a 2021 Changan CS35 Plus I4 1.4L Turbocharged Plus GDI Smart (Mid) with 151500 km mileage in average condition. The most relevant data point is a similar 2021 Changan CS35 Plus I4 1.4L Turbocharged Plus GDI Limited (Top) with 140700 km mileage in average condition, sold for 34000 SAR on 2024-05-17. Another similar car, a 2021 Changan CS35 Plus I4 1.4L Turbocharged Plus GDI Limited (Top) with 151000 km mileage in average condition, sold for 33000 SAR on 2024-06-30. The target car is a mid-trim, so it should be slightly less than these top-trim models. A 2021 Changan CS35 I4 1.4L Turbocharged Plus GDI Smart (Mid) with 53000 km in good condition sold for 42000 SAR on 2024-08-11, but with much lower mileage. Considering the higher mileage and average condition of the target car, the price should be lower. The listed price for a similar car with 101500 km was 40000 SAR, but it was not sold. Based on these data points, the estimated market price is adjusted to reflect the higher mileage and average condition.