Clunker Math
Think of it this way: 
A clunker that travels 12,000 miles a year at 15 mpg uses 800  gallons of gas a year. 
A vehicle that travels 12,000 miles a year  at 25 mpg uses 480 gallons a year. 
So, the average Cash for  Clunkers transaction will reduce  US gasoline 
consumption by 320  gallons per year. 
They claim 700,000 vehicles so that's 224 million  gallons saved per year. 
That equates to a bit over 5 million  barrels of oil. 
5 million barrels is about 5 hours worth of   US consumption. 
More importantly, 5 million barrels of oil at $70  per barrel costs about $350 million dollars 
So, the government paid  $3 billion of our tax dollars to save $350 million 
We spent $8.57  for every dollar saved. 
I'm pretty sure they will do a great job  with health care, though.
