To estimate the price of the 2023 Audi A6 Standard 35 TFSI (Base) with 77000 km mileage, I first looked at the new car prices for different variants. The closest variant to the 35 TFSI is the 40 TFSI, which starts at AED 239900. Given the car is a 2023 model, I applied a 10% depreciation for one year, resulting in an estimated value of AED 215910. Next, I reviewed listed prices of similar cars. The 2021 Audi A6 35 TFSI (Base) with 55959 km was listed for AED 149990, and the 2023 Audi A6 45 TFSI Quattro (Top) with 32797 km was listed for AED 156000. Considering the higher mileage and average condition of the target car, I adjusted the price downwards. The 2022 Audi A6 40 TFSI (Top) with 63000 km was listed for AED 173500, and the 2022 Audi A6 40 TFSI (Top) with 41500 km was listed for AED 105000. Factoring in these data points and the higher mileage, I estimated the market price accordingly.