CARS (Car Allowance Rebate System) or Cash for Clunkers is so popular that it has already ran out of funds to support it. Only a month into the program, CARS has gone through its billion dollar program. However, the house is planning to extend the program and fund two billion dollars more. CARS is a program by the US government to help promote the sale of new, more fuel-efficent cars. From July 1, 2009 until November 1, 2009, consumers are able to trade-in their used car (a car with a combined milage of 18 or lower and less than 25 years old) for $3,500 or $4,500 towards a new car. Over 250,000 cars have been purchased since the program has been enacted.

Read more about it here.

Learn more about the CARS program here.