To estimate the price of the 2016 Audi Q7 V6 3.0L 45 TFSI S-Line (Mid) with 150500 km mileage, I first considered the selling prices of similar cars. A similar 2016 Q7 45 TFSI S-Line (Mid) with 101000 km sold for 72500 SAR in March 2024. Given the higher mileage of the target car, its value would be lower. A 2015 Q7 45 TFSI (Base) with 141394 km sold for 49000 SAR recently, indicating depreciation over time. The listed prices for similar 2016 Q7 45 TFSI S-Line (Mid) models ranged from 72000 to 94000 SAR, but these are typically higher than actual selling prices. Considering these factors, the estimated market price for the target car is adjusted downward from the 72500 SAR selling price due to higher mileage and market depreciation.