To estimate the price of the 2017 Haval H6 Standard with 300000 km mileage, I considered the following data points: 1) A 2016 Haval H6 Standard with 117000 km sold for 21500 AED on 2023-12-11. 2) A 2019 Haval H6 Standard with 88300 km sold for 48500 AED on 2023-10-25, 42500 AED on 2023-12-11, and 42500 AED on 2024-01-18. 3) A 2016 Haval H6 Standard with 117000 km is listed for 25500 AED. 4) A 2019 Haval H6 Standard with 88300 km is listed for 49000 AED. Given the higher mileage and older model year of the target car, I adjusted the price downwards significantly from the 2016 model's selling price of 21500 AED, considering the substantial mileage difference.