The problem with politicians is that they usually propose or say exactly what the people in their immediate audience want to hear. I say let the auto industry work on CAFE standards at their own rate. If they are mandated to 50 MPG, can you imagine the amount of $$$$ that will cost them in engineering and design, research and development??? I guess we should all ride horses or bicycles...just don't ask any politician to give up his fleet of limos or private aircraft!!!