The car to be estimated is a 2012 GMC Acadia SLE V6 3.6L SLE2 (FWD) in bad condition with 275,000 km mileage. The most relevant data points are the selling prices of similar cars. A 2012 Acadia SLE2 (FWD) with 235,000 km in good condition sold for 24,000 SAR, and another with 240,900 km in average condition sold for 17,300 SAR. A 2012 Acadia SLE2 (FWD) with 186,500 km in average condition sold for 20,000 SAR. The car in question has higher mileage and is in worse condition than these examples. A 2014 Acadia SLE2 (FWD) with 300,000 km in average condition sold for 17,000 SAR, which is a closer match in terms of mileage. Considering the bad condition of the car to be estimated, its value should be lower than these examples. The listed prices of similar cars are higher, but they are not reliable as they are not actual selling prices. Therefore, considering the bad condition and high mileage, the estimated price should be lower than the lowest selling price of similar cars in average condition.