In California -
I made the down of 4000, coowner was a borrower and on the title as "and"; I made 5500 in payments. One payment was late. Co-owner had the car taken from me -towed, he had no keys - and volyntarily paid off the note in full of 13000. Now he wants me to pay the whole 13000 or he will "keep" the car. He will not use it, he's just trying to extort me into renegociating the contract by which he co-signed. If the car is sold, do we split the porceeds? 50-50 or proportionate to the sums invested. Thanks

