If I am reading into this correctly, it looks as though that memo is worded incorrectly. Where is says, "However, the deduction cannot be taken by a taxpayer who elects to deduct State and local sales taxes in lieu of State and local income taxes." I would think it should read just the opposite. If you are taking the State and local sales taxes, that would include your vehicle purchase tax. If you choose to use State and local income taxes, then I would believe that is when you cannot claim the vehicle on top of that. It doesn't make sense the other way, but at the same time, I don't see where that is anything different that what is allowed in 2008. It's the same thing, except you may be out of luck if you made the purchase between 1/1/09 and 2/17/09.