To estimate the price of the 2023 Changan UNI-K I4 2.0L Turbocharged Flagship (Top) with 21749 km mileage and average condition, I considered the following data points: 1. Selling prices of similar cars: The closest match is the 2023 Changan UNI-K I4 2.0L Turbocharged with 18000 km sold for 120000 SAR on 2023-10-09. Other similar cars sold for 126500 SAR, 104500 SAR, and 103000 SAR, but these were Standard variants. 2. Listed prices of similar cars: The closest match is a 2023 Changan UNI-K I4 2.0L Turbocharged Flagship (Top) with 21749 km listed for 82000 SAR. Another Flagship variant with 26000 km is listed for 121500 SAR. 3. Considering the car's average condition and the fact that listed prices are generally higher than selling prices, I adjusted the estimate accordingly.