Set to be launched at the 2009 Frankfurt Auto Show, Porsche has revealed a few teaser shots of the 2010 Porsche Panamera sedan. Some spy shots can be seen on some auto related blog and sites. 2010 Porsche Panamera will initially be equipped with a 4.8L engine derived from the unit Porsche Cayenne, which has an engine that features direct-injection and cylinder-deactivation technology.