To estimate the price of the 2015 Mercedes C300 2.0L I4 Standard with 78938 miles, I first looked at the selling prices of similar cars. A very similar car with 79500 miles sold for AED 46000 in November 2023. This is a strong indicator of the market value. Another 2017 model with a different variant and lower mileage sold for AED 54000 recently, but this is less relevant due to the different year and variant. Next, I considered the listed prices of similar cars. The closest match is a 2015 model with the same mileage listed for AED 50000, but listed prices are generally higher than selling prices. Other 2015 models with similar specs and mileage are listed around AED 50000-52500. Given the selling price of AED 46000 and the listed prices, I estimate the market price to be slightly lower than the listed prices but close to the selling price.