The dealer told me that they will be required to put on the window sticker the tax credit the vehicle will be eligible for if it's not the full $3150.00., So when it goes to say 50%, they have to say that on the sticker. Thought that might be interesting for you thinking of a later purchase.
Not sure about what is on the sticker but I received a two forms from Toyota for tax records. Not that I think I need them since there are tax regulations that specify your tax credit.
