To estimate the price of the 2014 Mercedes E300 V6 3.5L Standard with 228000 km mileage, I considered several data points. First, I looked at the selling prices of similar cars: a 2014 E300 with 131500 km sold for 44500 AED on 2024-08-02, and a 2013 E300 with 155100 km sold for 44500 AED on 2024-05-18. Given the higher mileage of the target car, I adjusted the price downwards. I also considered the accepted offer of 39000 AED for a 2014 E300 with 180682 km on 2024-07-11, which suggests a lower value for higher mileage. Lastly, I reviewed the listed prices: 41500 AED, 43500 AED, 47500 AED, 42000 AED, and 40000 AED for similar cars with varying mileages. Given the target car's higher mileage, I estimated a price lower than these listings but higher than the accepted offer, considering the market trend and depreciation.