To estimate the price of the 2021 Mercedes C200 I4 2.0L Turbocharged Standard coupe with 26600 km mileage, I first considered the selling price of a similar 2020 Mercedes C200 I4 2.0L Turbocharged sedan with 62000 km mileage, which sold for SAR 153000 in April 2024. Given the target car is a year newer and has significantly lower mileage, it should be valued higher. Next, I looked at the listed price of a similar 2021 Mercedes C200 I4 2.0L Turbocharged coupe with the same mileage, which is SAR 180000. This listed price is likely higher than the actual selling price. Considering the condition and specs, I adjusted the price downwards. Finally, I reviewed other listed prices for context, such as a 2020 Mercedes C200 coupe listed for SAR 169000 and a 2022 Mercedes C200 sedan listed for SAR 224500. Based on these data points, I estimated the market price by balancing between the actual selling price and the listed prices, adjusting for the car's condition, mileage, and year.