If you are in the market for American excess and feeling a bit green at the same time, Cadillac has your next vehicle. It's the 2009 Cadillac Escalade Hybrid, and it goes on sale this month with an MSRP of $71,685 (a mere $3,600 premium over a comparably-equipped Escalade, GM boasts). The 'first-ever hybrid on a large luxury SUV' features GM's advanced Two-Mode Hybrid technology allowing it to run on just battery power during idling (do electric cars idle?) or low-speed driving conditions. Like the gas-only model, the Hybrid also incorporates Active Fuel Management meaning it can run on as few as four cylinders to save fuel. The 2009 Cadillac Escape Hybrid earns EPA fuel economy ratings of 20 city/21 highway (the non-hybrid Escalade is rated 12/19), so there is some gas to be saved here.