To estimate the price of the 2017 Mercedes E400 V6 3.0L Twin Turbo Standard sedan with 143000 km mileage, I first considered the selling price of a similar 2015 model with 148000 km mileage, which sold for SAR 120000 in 2023. Given the two-year difference, I adjusted for depreciation, estimating the 2017 model would be worth more. Next, I looked at listed prices of similar 2017 models: one with 121000 km listed for SAR 158500, another with 83000 km listed for SAR 175000, and a 2016 model with 204000 km listed for SAR 112500. Considering the higher mileage of the target car, I adjusted the price downwards from the listed prices. The convertible model listed for SAR 175000 was not directly comparable due to the body type difference. Based on these data points, I estimated the market price for the target car.