To estimate the price of the 2015 Cadillac ATS I4 2.5L Standard (Base) with 182000 km mileage, I first considered the selling price of a similar 2016 model with 25000 km sold for SAR 62000 on 2023-10-27. Given the significant mileage difference, I adjusted the price downwards. Next, I looked at listed prices of similar cars: a 2015 model with the same mileage listed for SAR 45500, and another 2015 model with 168000 km listed for SAR 48000. These listings provide a range but are generally higher than actual selling prices. Considering the car's average condition and higher mileage, I estimated a price lower than these listings but higher than the lowest delisted price of SAR 31500 for a similar variant with higher mileage.