To estimate the price of the 2017 Porsche Macan GTS, I started by looking at the new car prices for the 2025 Porsche Macan GTS, which is AED 356000. Given that car values depreciate by approximately 10% per year, the 2017 model would have depreciated for 7 years. Using the formula for depreciation, the value of the car would be approximately 48% of its original price (0.9^7). This gives an estimated value of around AED 170880. Additionally, I considered the listed price of a 2019 Porsche Macan GTS with 66000 km, which is AED 195000. Given that the 2017 model has higher mileage (88000 km) and is older, I adjusted the price downwards. Taking all these factors into account, I arrived at the final estimate.