To estimate the price of the 2019 Mercedes E400 convertible with 66725 miles, I first considered the selling price of a similar 2017 Mercedes E400 coupe with 105990 miles, which sold for AED 55000 in May 2024. Given the age and mileage difference, the 2019 model should be valued higher. Next, I looked at the listed prices of similar cars. The closest match is a 2019 Mercedes E400 convertible with the same mileage listed for AED 140000. Other 2018 models with varying mileages and body types are listed between AED 122500 and AED 195000. Considering the convertible body type and the fact that listed prices are generally higher than selling prices, I adjusted the estimate downwards from the highest listed price. The 2017 model's selling price and the 2019 model's listing price provide a range, and I chose a value that reflects the car's condition and market trends.