My 2002 911 996 cabrio gets around 30-33mpg on interstate with cruise set to 75mph in 6th gear.
The EPA mileage estimate for the 2012 Porsche Cayman is 19 mpg in the city, 27 mpg on the highway.
The EPA mileage estimate for the 2012 Porsche Boxster is 19 mpg in the city, 27 mpg on the highway.
The EPA mileage estimate for the 2005 Porsche Cayenne is 13 mpg in the city, 19 mpg on the highway.
The EPA mileage estimate for the 2001 Porsche Boxster is 17 mpg in the city, 25 mpg on the highway.
The EPA mileage estimate for the 2012 Porsche Cayenne is 15 mpg in the city, 22 mpg on the highway.
The EPA mileage estimate for the 2014 Porsche Boxster is 20 mpg in the city, 30 mpg on the highway.
The EPA mileage estimate for the 2008 Porsche Cayenne is 14 mpg in the city, 20 mpg on the highway.
The EPA mileage estimate for the 2013 Porsche Panamera is 18 mpg in the city, 27 mpg on the highway.
The EPA mileage estimate for the 2006 Porsche Boxster is 18 mpg in the city, 27 mpg on the highway.
The EPA mileage estimate for the 2008 Porsche Boxster is 20 mpg in the city, 29 mpg on the highway.
The EPA mileage estimate for the 2012 Porsche Panamera is 18 mpg in the city, 27 mpg on the highway.
The EPA mileage estimate for the 2007 Porsche 911 is 16 mpg in the city, 24 mpg on the highway.