The "cash for clunkers" bill just passed by Congress won't do much for car owners who want to trade in for a more fuel efficient model. If you own an SUV, though, you could stand to gain.
The reason this rule won't help car buyers is that most cars, even older ones, aren't inefficient enough to qualify as "clunkers."
Read more about this biblical failure to improve massive fuel consumption problem from CNN as they throw away billions to try to get you to buy MORE SUV's at CNN.