8 luxury autos that flunk the value test

Soon to be gobbled up by Volkswagen, the German sports car maker dazzles on the road and usually scores high in initial quality and residual value. But Consumer Reports' readers graded the Porsche 911 Carrera only average in reliability, and its cost-per-mile penciled out at $1.53. An all-new 2013 911 may produce better numbers. Porsche buyers don't seem to mind, though. They buy twice as many 911s, starting at $87,250, as they do the automaker's less expensive Boxsters and Caymans combined.

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