You cannot deduct any of it.
This, from IRS guidance for Car Sales and Excise Tax Questions: Questions and Answers:
Q: Does leasing a car or other vehicle qualify for this deduction?
A. No, leases and rentals do not qualify for this tax deduction. The law specifies that the deduction applies to the purchase of qualified new vehicles. A lease is not a purchase for the purpose of this deduction.
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Car
Sales Tax
