Porsche_Turbo

I get 12.7-14.7 MPG, daily driving. 40% city 60% highway.

ScootCherHienie

The EPA fuel economy numbers for '06-'07 955 Turbo are 12 mpg city, 17 mpg highway.

The only time I have compared the engine computer calculated mileage to actual mileage, the engine computer said 14.6 and the actual mpg was 13.1 so real MPG was 1.5 lower than what the car thought (non-Turbo 4.8 L for me).

Had Cayennes been classified as cars, they would have been subject to the gas guzzler tax, but SUVs are exempt from ggtax.

leftlane

I average 18.1 in my 2014 GTS - I'm always in comfort mode, but I definitely drive fast everywhere. 60/40 mix highway to city. This is only 2 mpg less than my BMW 750, which impressed me with its mileage.

blakecam

My old 36' double cabin boat used to get 2.5 gallons per mile. My Cayenne is not that far behind after spirited driving.

North Shore 911

We just drove up to our lake home in Northern Wisconsin tonight from the Chicago suburbs in our '12 Cayenne S..... 300 mile trip, all highways, drove the whole way in normal mode and comfort suspension, averaging ~73 MPH for the whole drive. Trip computer showed 19.2 MPG, which is far better than the 15MPG I get on my daily commute to the office (50-mile round trip, 70% Highway/30% City)