To estimate the price of the 2017 GMC Acadia Denali V6 3.6L, I first considered the selling prices of similar cars. A 2016 Denali variant with 104200 km sold for 54000 AED recently, and a 2019 Denali with 56500 km sold for 95000 AED. The 2017 Denali listed for 54000 AED had much higher mileage at 160030 km. Given the target car's mileage of 85000 km, it should be valued higher than the 2016 model but lower than the 2019 model. The 2016 Denali listed for 48000 AED and 51500 AED also supports this range. Considering depreciation and the condition, I estimate the price to be slightly above the 2016 Denali's selling price but below the 2019 model's, around 60000 AED.