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Paid cash for a car, but dealer wants to change price
I've been an F&I Manager at a new car dealership for over ten years, and I can tell you this with absolute certainty, your deal is final. There is no legal obligation for you whatsoever. I see this post is a few weeks old so I am sure by now you already know this to be true, but for future reference in case someone in a similar situation comes across this thread, they too will know. This is a completely different situation to the ones referenced earlier in the comments on being called by the dealer to return the vehicle due to the bank not buying the loan. That only pertains to customers who finance, the dealer is protected there because on isolated occasions, which the dealer hates as much as the customer, trust me, you are approved on contingency that the financing bank will approve your loan. That is an educated guess the finance manager makes based on credit history and past experience with the bank, which he is usually correct on. However there are times, especially late afternoon on Fridays when banks are preparing to close for the weekend the loan officer may not be able to approve you before closing time, in which case the dealer allows you to take the vehicle home until business is back up and running the following Monday. He does this mostly to give you sense of ownership, so you don't go down the street to the next dealership and go home in one of their vehicles.  However, there are those few instances for whatever reason the bank decides your credit just isn't strong enough for the rate agreed upon, so the dealer will try everything he can to either change to a different lender, or sell the loan at a higher rate which he has to get you to agree upon. If neither of those two things work, he will request that you return the car. Between the time you sign and the moment a lender agrees to purchase your contract the dealer is the lien holder, and has legal rights to repossession, in all 50 states. Not to mention you will sign a contingency contract before leaving that states you are not yet the owner of the car, probably not in so many simple words though, but it will certainly be in there before they let you take a car before the finalizing contract is signed.  Now as far as the situation of the OP, you purchased your car for cash, all documents signed, the car is yours, plain and simple. It doesn't matter what state you are in, if he's cashed the check, whatever. The buyer and seller both signed all documents stating a free and clear transaction. Your business is done in the eyes of the law. Most likely the salesman or finance manager who signed paperwork with you, noticed the error and was hoping to recoup the losses from a young novice buyer.  Regardless of the situation, it is extremely unprofessional, and clearly shows that this person is very inexperienced and reflects poorly on management as well for not doing a better job of training their employees. When I started out, I found myself in somewhat similar situations, both times I offered to pay the difference of my mistake, or deduct it from my part of the sale. The General Manager didn't take me up on my offer. He just told me we all make mistakes and to just learn from it. Had I been so unprofessional to call the customer and try to renegotiate terms, I would have without a doubt been fired on the spot.