To estimate the price of the 2016 Audi A6 35 TFSI I4 1.8L Turbocharged (Base) with 207000 km mileage, I considered the following data points: 1. Selling prices of similar cars: A 2016 Audi A6 35 TFSI I4 1.8L Turbocharged with 255000 km sold for 45000 SAR in November 2023, a 2016 Audi A6 35 TFSI I4 2.0L Turbocharged with 215500 km sold for 40000 SAR in November 2023, and a 2016 Audi A6 I4 1.8L with 195000 km sold for 46500 SAR in April 2024. 2. Listed prices of similar cars: A 2016 Audi A6 35 TFSI I4 1.8L Turbocharged with 207000 km is listed for 42000 SAR, another with 192000 km is listed for 62000 SAR, and another with 164544 km is listed for 54000 SAR. Considering the selling prices, the car with the closest mileage and condition sold for 45000 SAR. The listed prices are generally higher than selling prices, so I adjusted the estimate accordingly.