We first told you about plans for a 2009 Porsche Cayenne hybrid nearly two years ago, and not much has been said or written about it since. That is until now, with the Los Angeles Auto Show in full swing and more than 50 hybrid and alternative vehicles on display this week (see the list below), red green Cayenne talk is once again heating up. LA is the largest car market in the United States and the perfect location to show off a more eco-friendly Porsche.

