The cost of a gallon of gas just passed $5 across the U.S. and people are thinking it’s time to panic. There are many ways to panic: You can run screaming through the street with your hair on fire. You can loot the local AM/PM MiniMart. Or you can just buy a more efficient car. Maybe pick the latter. But which one? Which cars on the market right now are the most efficient? Luckily, our Federal Environmental Protection Agency has done the legwork for us, or rather, it has directed all carmakers to do the legwork. EPA has very precise, prescribed methods of calculating and verifying efficiency, far better even than car websites. Read original article here.