[Seven plus One]

...but if not enough people want to buy their cars, it'll be a pointless exercise.

What if even with all those breaks they still didn't want to buy their cars?

[irishjuggler]

What if even with all those breaks they still didn't want to buy their cars?

Then you'd have a problem. I do think, though, that big incentives on the demand side could work. Let's say that you're trying to decide between buying a Toyota Camry and a comparably-equipped Chevy Malibu, and all of a sudden the Malibu will result in a savings of five or six thousand dollars on your income tax bill. Which one do you buy? Some people will, for a number of reasons, still buy the Camry, but more than a few will likely decide to pocket the savings.