To estimate the price of the 2015 Mercedes S400 Twin Turbo V6 3.0L Standard, I first considered the selling prices of similar cars. A 2017 model with similar specs sold for 108,000 SAR, and a 2014 model sold for 82,000 SAR. The 2016 models sold for 164,500 SAR and 164,000 SAR, while a 2015 model with higher mileage sold for 169,000 SAR in 2023. Given the 2015 model's higher mileage, its price would have been higher than the target car's. Next, I looked at listed prices: a 2015 model with similar mileage was listed for 165,000 SAR, but this is likely higher than the actual selling price. Another similar car was listed for 210,000 SAR, which is an outlier. Considering the depreciation and the average condition, the estimated market price is adjusted to reflect a realistic selling price based on these data points.