Cash for Clunkers nearly in gearCash for Clunkers, the federal program that allows you to trade in your gas guzzler, smacked into a roadblock this week after it became clear the program is already close to burning through its billion budget. The White House made clear today that the program will extend at least through the weekend if not longer. The House just passed a billion extension to the program but the Senate is not expected to vote on the measure until Monday.