To estimate the price of the 2016 Audi A5 35 TFSI S-Line I4 1.8L Turbocharged with 185000 km mileage, I first considered the selling price of a similar car with the same variant and specs but with lower mileage (45000 km) sold for SAR 37000 on 2024-08-19. Given the significant difference in mileage, I adjusted the price downwards. The listed prices of similar cars were also considered: a 2018 model with 185000 km listed for SAR 90000, a 2015 model with higher mileage (210000 km) listed for SAR 39000, and another 2016 model with 45000 km listed for SAR 37000. The 2018 model's higher price is due to being newer and having a different engine. The 2015 model's lower price reflects its older age and higher mileage. Considering these factors, I estimated the market price by adjusting for the higher mileage and average condition of the target car.