I'm seeing bills like these come up for proposal more and more frequently, the most recent one is a Cash for Gas Guzzlers bill: Cash-for-Guzzlers Bill Proposed by Democrats : Auto News I just think it's a lot of legislation that would have little impact except to move tax dollars around to people who really don't need them. -This only helps those who can afford a new car, people in the market for used cars or can't afford a new car are stuck with a used car market now saturated with gas guzzlers. -A big part of automobile related pollution is from the manufacturing process, producing new cars that only get marginally better economy would have a negative net impact on the environment -Trying to stimulate a troubled economy, which was brought on in part by irresponsible spending and people having too much debt, by encouraging people to take on more debt seems somewhat backwards. At least this particular bill isn't a scrappage program but rather the opposite of a luxury tax. In general I just don't like bills that subsidize what I see as a luxury, very few people buying a new car actually need a new car as what they currently have usually works just fine still. Many bills of this nature involve vehicle scrappage which takes a running vehicle off the road, and out of the used car market, and uses energy to shred and recycle it. Typically this vehicle would be passed to a lower income consumer in the used car market who would then use it until the end of it's service life where it would then find it's way to a salvage yard where it's parts would become economical replacement parts for another vehicle. Shredding vehicles diminishes the used car market, increasing used car prices and takes away these sources of parts. I'll step off my soap box now.