I started by looking at the selling prices of similar cars. The most relevant data points are: 2013 BMW 730 3.0L I6 TC with 208750 km sold for 20000 AED on 2024-07-15, 2013 BMW 730 3.0L I6 with 55500 km sold for 38000 AED on 2023-09-27, 2012 BMW 730 Li 3.0L I6 with 168500 km sold for 35000 AED on 2024-03-16, and 2015 BMW 730 3.0TC I6 with 103350 km sold for 52000 AED on 2024-05-25. Given the higher mileage of the target car (228400 km), I adjusted the price downwards. The listed prices of similar cars also provided context: a 2013 BMW 730 Li I6 with the same mileage is listed for 36500 AED, but listed prices are generally higher than selling prices. Considering the depreciation and the actual selling prices, I estimated the market price accordingly.