The car to be estimated is a 2022 Changan Alsvin I4 1.5L Standard (Base) with 91000 km mileage in good condition. The most relevant data point is a similar car with 95000 km mileage, average condition, and the same Standard (Base) variant, sold for 23000 SAR on 2024-05-29. Another relevant data point is a Standard (Base) variant with 51000 km mileage, average condition, sold for 31000 SAR on 2023-07-31. Considering the higher mileage and good condition of the target car, its price should be slightly lower than the 23000 SAR car due to better condition but higher mileage. The Advanced (Top) variant with similar mileage and average condition sold for 26000 SAR on 2024-04-26, indicating the Standard variant should be lower. Therefore, the estimated price is adjusted to reflect these factors.