To estimate the price of the 2021 Porsche Cayenne S Twin Turbo V6 2.9L, I first considered the selling prices of similar cars. The 2020 Porsche Cayenne V6 3.0L S (Mid) with 77000 km sold for SAR 255000 and SAR 220000 in early 2024. These cars have higher mileage than the target car, suggesting a higher value for the 2021 model with only 27100 km. The 2022 Cayenne GTS V8 4.0L sold for SAR 11496, but this seems like an error or outlier. Next, I looked at listed prices. A 2021 Cayenne V6 3.0L Turbo (Top) with 40000 km was listed for SAR 320000, and a 2020 Cayenne S (Mid) with 48000 km was listed for SAR 277500. These listings suggest a price range for the 2021 model. Considering the lower mileage and the fact that the car is a 2021 model, I estimate the market price to be slightly higher than the 2020 models sold and listed, but lower than the top trim listings.