The car to be estimated is a 2015 Chevrolet Impala LT V6 3.6L LT (Mid) with 327,000 km mileage in average condition. The most relevant data point is a similar 2015 Impala LT (Mid) with 182,000 km sold for 45,500 SAR on 2024-09-10. Considering the higher mileage of the target car, a significant depreciation is expected. A 2014 Impala LT (Base) with 232,000 km sold for 23,500 SAR on 2024-01-28, indicating a lower price for older models with high mileage. Listed prices for 2015 Impalas with similar mileage range from 27,000 to 56,500 SAR, but these are often higher than actual selling prices. Given the target car's high mileage and average condition, the estimated price should be lower than the 45,500 SAR benchmark for a similar car with less mileage.