No, you can't deduct sales tax for your new car as Personal Property Tax. Sales tax is deducted on Schedule A when you itemize your deductions. You have the option of deducting sales tax or State and Local Taxes (SALT). The most that you can deduct is $10,000 ($5,000 if you are filing as Married Filing Separately).
For instructions to enter your sales tax, review the TurboTax Help article Where do I enter my sales taxes paid?
For more information, review the TurboTax article How to Write Off Sales Taxes.
You can deduct the license fee of your registration fees that's based on the value of your car as Personal Property Tax.
Refer to the TurboTax article What Are Personal Property Taxes? and Is Your Car Registration Deductible?
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