When we compare the Porsche 911's and the Porsche Cayman's specifications and ratings, the Porsche 911 has the advantage in the areas of interior volume and base engine power. The Porsche Cayman has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, and fuel efficiency. Based on this comparison of the Porsche 911's and the Porsche Cayman's specifications and ratings, the two cars are fairly comparable.
Porsche 911 vs. Porsche Cayman Pricing
A used 2016 Porsche 911 ranges from $69,981 to $226,999 while a used 2016 Porsche Cayman is priced between $43,637 to $116,999.
Engine Power and Fuel Efficiency Comparison
For engine performance, the Porsche 911’s base engine makes 350 horsepower, and the Porsche Cayman base engine makes 275 horsepower. The 911 is rated to deliver an average of 22 miles per gallon, with a highway range of 456 miles. The Cayman is rated to deliver an average of 24 miles per gallon, with a highway range of 507 miles. This gives the Porsche Cayman the fuel efficiency and maximum range advantage over the Porsche 911. Both models use gasoline.
Passenger Space Comparison
The Porsche 911 has the advantage of offering more interior volume, reflected in more front head room. The Porsche Cayman has the advantage in the area of cargo space. The Porsche 911 and Porsche Cayman are comparable in regards to front shoulder room.