To estimate the price of the 2015 Porsche Cayenne S V6 3.6L (Mid) with 165000 km mileage, I considered several data points. First, a 2015 Porsche Cayenne GTS V6 3.6L Twin Turbo with 138000 km sold for 110000 SAR in April 2024. Given the GTS variant is higher than the S variant, the price should be lower. A 2014 Porsche Cayenne V6 3.6L Turbocharged with 127000 km sold for 76500 SAR in October 2023, but it is a year older and has a different engine. A 2014 Porsche Cayenne S V8 4.8L Twin Turbo with 187000 km sold for 90000 SAR in November 2023, but it has a larger engine. A 2013 Porsche Cayenne V6 3.6L with 89000 km sold for 110000 SAR in January 2024, but it is older and has lower mileage. Lastly, a 2016 Porsche Cayenne V8 4.8L Turbo Charged with 64000 km sold for 185000 SAR in March 2024, but it is a newer model with a different engine. Considering these factors and the listed prices of similar cars, I estimated the market price accordingly.