All of these tax breaks distort rational economic decisionmaking, since the government is stepping in and handing out candy to people it thinks are the "right" people doing the "right" things.

Why should the federal government be giving a tax break to ANYONE based on what vehicle they drive?

Besides, I think that it is fundamentally offensive to use the tax code as a cheap-and-dirty source of social engineering (and political payola to the Detroit automakers, in this case).

-- Bokonon