Wha tis the form for transfer a car and they keep diong the payments

You would have to get him to take over the lease if you want to do it legally.

that would be the best way way.

otherwise, you would still be liable if he stopped paying

You can have a signed agreement from a notery, to sign in front of to transfer the car to some one else , and its a loan contract, for some one to take over the payments, and at the end , of the contract, you transfer to his name, same thing as a land contract , but this is a car contract

If you are making payments the bank holds the title and they do sometines allow for a loan assumption but generaly they want a new loan this is to protect them and you. if that person doesnot maintain the payments and insurance make no mistake you are still responsible ===[ on a personal note i have done it and it has always cost me. and i have heard almost every excuse . it also a good way to lose a friend...good luck ]

Depends where in the world you are: in Britain car credit is based on a credit assessment of the buyer, so I imagine a reasessment would have to be made if ownership and repayment changes were made. Have a chat with whoever provides credit for your vehicle to get the real info, and get it in writing :D