Used 2011 Porsche 911 Values

Buying a Porsche 911 is buying a piece of sports car history. The model has been in production since 1966, and it's kept its true rear-engine design the entire time -- one of the few models to do so. At the base level, the 911 delivers 180-mph speeds for well under six figures while returning 25 mph combined mpg. But for those with deep pockets and enviable driving skills, the quarter-million-dollar 911 GT2 RS will take you over 200 mph. This kind of performance is hard to find at any price. However, Porsche offers an entry-level 911 model starting under $78,000, opening the door to a lot more people to Porsche design and performance.