I started by examining the selling prices of similar cars. The most relevant data point is the 2013 Nissan Qashqai 2.0L I4 with 177500 km sold for AED 17500 on 2024-02-15 and another similar car sold for AED 16500 on 2024-02-23. These cars have similar specifications and condition to the target car. The 2014 model sold for AED 18000 on 2024-08-16, but it is a newer model. The 2011 model with a 2.0L engine sold for AED 22000 on 2023-05-15, but it is older and had less mileage. The listed prices for similar 2013 models were AED 17000 and AED 21000, but these are higher than the actual selling prices. Considering the target car's higher mileage of 243700 km, I adjusted the estimate downwards from the selling prices of similar cars with lower mileage.