To estimate the price of the 2019 Audi Q7 V6 3.0L Twin Turbo 55 TFSI (Top) with 110000 km mileage and average condition, I considered the following data points: 1) A 2019 Audi Q7 I4 2.0L Turbo Charged with 136000 km, average condition, sold for 105000 SAR on 2024-04-19. 2) A 2018 Audi Q7 V6 3.0L supercharged with 55185 km, good condition, sold for 135000 SAR on 2023-11-29. 3) A 2018 Audi Q7 45 TFSI Quattro V6 3.0L Twin Turbo with 112000 km, average condition, sold for 123500 SAR on 2024-01-22. 4) A 2018 Audi Q7 45 TFSI Quattro V6 3.0L Twin Turbo with 109200 km, average condition, sold for 115000 SAR on 2024-04-21. I also considered the listed prices: 1) A 2019 Audi Q7 V6 3.0L Twin Turbo 55 TFSI (Top) with 110000 km listed for 175500 SAR. 2) A 2019 Audi Q7 I4 2.0L Turbo Charged with 136000 km listed for 105000 SAR. 3) A 2019 Audi Q7 TFSI Quattro V6 3.0L Turbocharged with 80000 km listed for 217000 SAR. Given the selling prices and the listed prices, I adjusted for the higher trim and engine size of the target car, and the average condition, to arrive at the final estimate.