To estimate the price of the 2021 Mercedes C300 I4 2.0L Turbocharged coupe, I first considered the listed price of a similar 2021 model with almost identical mileage (120500 km) and specs, which is SAR 122500. This provides a current market listing reference. Next, I looked at the accepted offer for a 2019 Mercedes C300 coupe with higher mileage (176000 km) at SAR 130000, which suggests that the 2021 model should be valued higher due to being newer and having less mileage. However, the condition of the car in question is average, which might lower its value slightly. Considering these factors, I estimated the market price slightly below the listed price to account for negotiation and condition.