You may be able to deduct the following two expenses:
To
claim sales tax paid on a new car, you take it as a deduction on Schedule
A.
Go to Deductions & Credits>Estimates and Other Taxes
Paid>Sales Tax.
To deduct the
registration fee, you take it as a deduction on Schedule A.
Go to Deductions
& Credits>Cars and Other Things you Own>Car Registration Fees.
Depending on the state in which you live, you may or may not be able to deduct
it
To benefit from the above two
deductions, you must itemize your deductions which will require you to use TurboTax Deluxe or a
higher edition
See TurboTax Buyer's Guide