Porsche to debut hybrid SUV

August 31, 2009 The 2010 Cayenne SUV promises 25 percent better fuel economy than its traditional six-cylinder model.

The hybrid version will be able to drive up to 32 miles per hour on electric power only.

Porsche also rolled out its new four-door sedan, the Panamera.

Porsche says if the Cayenne hybrid is successful, the new Panamera could become its next hybrid.

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