To estimate the price of the 2015 Porsche Cayenne S V6 3.6L S (Mid) with 250403 km mileage, I considered the following data points: 1. A 2014 Porsche Cayenne V6 3.6L Turbocharged (GTS, Mid+) with 127000 km sold for 76500 SAR on 2023-10-18. 2. A 2014 Porsche Cayenne S V8 4.8L Twin Turbo (S, Mid) with 187000 km sold for 90000 SAR on 2023-11-25. 3. A 2013 Porsche Cayenne V6 3.6L (S, Mid) with 89000 km sold for 110000 SAR on 2024-01-19. 4. A 2016 Porsche Cayenne V8 4.8L Turbo Charged (Coupe Turbo S E-Hybrid, Top) with 64000 km sold for 185000 SAR on 2024-03-07. 5. A 2015 Porsche Cayenne GTS V6 3.6L Twin Turbo (GTS Coupe, Mid++) with 138000 km sold for 110000 SAR on 2024-04-19. 6. A 2014 Porsche Cayenne V8 4.8L (S, Mid) with 60000 km sold for 135500 SAR on 2023-04-28. Additionally, a similar 2015 Porsche Cayenne S V6 3.6L Twin Turbo (S, Mid) with 253000 km is listed for 153500 SAR. Considering the higher mileage and average condition of the target car, I adjusted the price downwards from the listed price and compared it with the selling prices of similar cars.