For years Porsche has paid millions of dollars annually to the U.S. government for its failure to adhere to corporate average fuel economy (CAFE) standards for its cars and SUVs. That could be about to change. According to U.K. site Autocar, Porsche is planning on rolling out hybrid versions of both its Cayenne SUV and its unreleased Panamera GT coupe.
News of the Cayenne hybrid was first announced in 2005 but a prototype went on display last fall at the Frankfurt auto show. It is now expected to be available by 2009. The Cayenne hybrid will feature a 34-kilowatt electric motor with a 3.6-liter, 290-horsepower V-6 and nickel-metal-hydride battery pack. Porsche estimates it will be able to get combined mpg of 24—a big improvement over the regular V-6 model, which gets 14/20 city/highway. Furthermore, the Cayenne hybrid is expected to be able to cruise on electricity at speeds of up to 75 mph.
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