To estimate the price of the 2013 Mercedes S300 AMG V6 3.0L Twin Turbo with 180000 km mileage, I considered the following data points: 1) Offers accepted by sellers: SAR 56000 for a similar car with 158000 km on 2024-02-12 and SAR 92500 for a similar car with 131500 km on 2024-08-31. 2) Listed prices: SAR 55000 for a car with 158000 km, SAR 103000 for a car with 211000 km, SAR 89000 for a car with 131500 km, SAR 74000 for a 2012 model with 166000 km, SAR 79000 for a car with 89000 km, and SAR 52500 for a 2011 model with 275500 km. Considering the car's average condition and higher mileage, I gave more weight to the lower end of the accepted offers and listed prices, adjusting for the higher mileage and average condition.