To estimate the price of the 2015 Audi Q7 V6 3.0L Turbo Charged 55 TFSI (Top) with 80000 km mileage, I considered the following data points: 1. A similar 2015 Audi Q7 TFSI Quattro V6 3.0L Turbocharged with 107000 km sold for 75000 SAR on 2024-05-06. 2. Another 2015 Audi Q7 V6 3.0L with 247000 km sold for 58000 SAR on 2023-11-28. 3. A 2016 Audi Q7 V6 3.0L with 101000 km sold for 72500 SAR on 2024-03-17, but it was a 45 TFSI S-Line (Mid) variant. 4. A 2016 Audi Q7 V6 3.0L with 153000 km sold for 95000 SAR on 2024-03-23, which was a 55 TFSI (Top) variant. 5. A 2016 Audi Q7 V6 3.0L with 111000 km sold for 124000 SAR on 2023-09-04, also a 55 TFSI (Top) variant. 6. A 2015 Audi Q7 V6 3.0L with 140000 km sold for 70000 SAR on 2023-08-03. Additionally, I looked at the listed prices: 1. A 2015 Audi Q7 V6 3.0L Turbo Charged 55 TFSI (Top) with 80000 km listed for 87000 SAR. 2. A 2015 Audi Q7 TFSI Quattro V6 3.0L Turbocharged with 107000 km listed for 75000 SAR. 3. A 2015 Audi Q7 V6 3.0L with 127000 km listed for 48000 SAR. Considering the selling prices and the listed prices, I adjusted for the lower mileage of the target car and the fact that it is in good condition.