Insider's Guide: New 2010 Luxury Debuts

2010 Porsche Cayenne Hybrid
The words "hybrid" and "Porsche" seem oxymoronic, but 2010 will see them combined in the Porsche Cayenne. Love it or hate it, the Porsche Cayenne is a big moneymaker for the brand, and its best-seller. Consequently, it's also a target for environmentalists in the same way as the Cadillac Escalade. The Cayenne Hybrid will counter that criticism by offering up to 25 mpg and a significant reduction in CO2 emissions, plus the ability to travel solely on electrons up to 31 mph. The downside? It's based on a V-6 engine, and at around 5,000 pounds, we don't expect Porsche-like acceleration.