Saving money on gas is one thing, but having a car that doesn't go through fuel like its not a precious commodity is also part of the equation. Ford announced today their plans to bring their Auto Stop-Start Technology to the United States in 2012. Also called idle-stop technology, or even microhybrid, it's designed to turn off the engine when the car is not in motion. The electrical system stays on, so you'll still have music and heat, but the engine will be off. As soon as the driver puts their foot back on the gas, the engine fires back up, and they can be on their way.