Be very careful if the borrower will occupy the car as their primary residence.
Seriously, see the Federal Trade Commission Rle Concerning Preservation of Consumer Claims and Defenses. You must include prescribed language in the contract and probably lose your position as a holder in due course.
It is at 15 USC 45 (beginning on page 7161 of the FDIC Rules and Regs).
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Al Miller, CRCM
Fremont Bank (CA)
(510) 790-5825
(510) 505-5211 FAX
Opinions expressed are my own and not necessarily shared by my employer.