The destruction of perfectly operable cars?
Here, look, this is a Corvette, being destroyed pursuant to government policy. I'm skipping ahead to the really destructive part:
The government, which took over General Motors, wants us to hate Corvettes?
Look at all that smoke! Does anyone care about actual pollution anymore? (As opposed to carbon dioxide.)
And look at all the waste! What about all the energy was used producing the car? That is being squandered now, on the theory that a new car will use less gas (assuming it's driven the same number of miles). And energy was used to manufacture the new car. Using old things longer — preserving things — is a way to decrease the consumption of fossil fuels that are used in production. I don't see how Cash for Clunkers factored in all the energy use that is involved in destroying one car and making another.
And it really pains me to see the destruction of something beautiful and good.