Can a co-buyer of a car sue the other co-buyer for unpaid loans,insurance, registration and/or parking tickets

Question

I live in CA and I co-signed on the purchase of a car for my nephew. Our agreement was that he would pay all the fees for the car and that he just needed my credit to buy the car. He is the only one that has been using the car. Recently he has not paid the car loans, has not paid for insurance costs, has not payed registration fees, and has not paid a few parking tickets that he got. So I have had to pay these amounts to keep my accounts in good standing. Is there any legal precedence for me to go to court and sue him for any of these costs? If so, which ones? He has a full-time job and makes a decent income but now refuses to pay these costs no matter what I say to him. Thanks for the help!

Answer 1

absolutely, take em to small claims court.

Answer 2

Yopu can take your cuz to small claims court just make sure you have some proof!