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Go ahead Porsche purists, sigh once again. The controversial Cayenne soldiers on into a second generation thanks in large part to a successful worldwide sales campaign launched in 2002. As one might expect, the 2011 Porsche Cayenne improves on many of the outgoing's traits while getting a boost in fuel economy and in some cases, more power. And of course, the Cayenne lineup is even greener thanks to a new hybrid model.inline_mediumwraptextright26960753/features/news/1002_2011_porsche_cayenne2011-porsche-cayenne-turbo-front.jpgTrue