yeah, get a lawyer to send a threatening letter. i'd get the car and drive it away..if the title's forged, wouldn't it be easy to show it's not your signature?
and give him through february to pay if this did happen last summer. it's not been the deadline yet. i'd be antsy too, but i also know that if i could save $50 a month knowing that i could pay it all off in february, it'd be easier to wait till then. not fair to you to not let you know that, but maybe that's his case.
i think suing and taking to court and all that would earn you nothing but a blood pressure explosion.
good luck whatever you decide. i hope it works out for you!!