What legal action does the cobuyer have if the buyer doesnt pay the payments for the car loan?

Don't know of any state that allows a co-buyer. There might be. For this purpose, let's use co-signer. What legal action does the co-signer have if the buyer doesn't make the car payments? In reality, the co-signer signed as a guarantee that the payment would be made and on time on the specified date. The buyer is the one buying. That's 2 different operations. The co-signer, at last known fact, cannot take the car because he is not buying it. He's paying THE LOAN since (and we're assuming here) the buyer is not paying. In my experience, if the buyer wants to be a horse patootie, he can drive that car with a smile on his face and not make payments because the co-signer IS OBLIGATED TO MAKE THE PAYMENTS. If the co-signer does not make the payments, then HIS CREDIT IS RUINED! Never co-sign, if at all possible.