To estimate the price of the 2016 Audi A8 V6 3.0L Twin Turbo 60 TFSI (Top) with 183000 km mileage, I considered several data points. First, I looked at the selling price of a similar 2016 Audi A8 V6 3.0L with 171000 km mileage, which sold for 59500 SAR on 2024-05-09. This car is a base variant, so the top variant should be priced higher. Next, I considered a 2014 Audi A8 V6 3.0L 60 TFSI (Top) with 231500 km, which sold for 49500 SAR on 2023-11-19. Given the older model year and higher mileage, this price is lower. Another 2014 Audi A8 TFSI Quattro V8 4.0L Turbocharged with 116000 km sold for 72500 SAR on 2023-11-28, but it has a different engine. A 2015 Audi A8 V6 3.0L Super Charged 60 TFSI (Top) with 81000 km sold for 89000 SAR on 2024-05-14, indicating a higher price for lower mileage. Lastly, a 2018 Audi A8 V6 3.0L Twin Power Turbo 60 TFSI (Top) with 104000 km sold for 160000 SAR on 2024-06-25, showing a significant price increase for newer models. Considering the listed prices, a 2016 Audi A8 V6 3.0L Twin Turbo 60 TFSI (Top) with 183000 km is listed for 80000 SAR and another with 177000 km is listed for 87000 SAR. Given the actual selling prices and the listed prices, I estimated the market price accordingly.