this is a repost but I had to update it

UPDATE: I found my bill of sale and at the bottom there is a check box that says ”sold as is” this box is not checked. Can I use this to my advantage.
In May 07 I bought an 02 nissan sentra from a hole the wall dealership that helps people build credit ( I had no credit so this was one of my few options). The car had 75g miles on it. When I went to pull the car away I noticed that the engine light was on and when I asked what was the reason the salesman said it was probably something to do with the gas cap.( I know my fault for not checking it out) Two months later (almost exactly to the day) I’m driving to my first day of work (I had moved from Port St. Lucie, Fl to West Palm Beach, Fl) I stop at a red light hit the gas when it turns green and the car shuts off. I call the dealer and he says ”bummer, you can bring it back to us but we’ll charge you dealer price”. So I take it to a mechanic and he tells me the timing chain broke so I pretty much need a new engine, which is about $3000. Mind you I bought this car on a two year payment plan of $305 a month and 29.35% A.P.R. I need to know is there anything I can do? Don’t I have rights as a consumer? All these monthly payments for a car that I’m not even driving.

Removal of one party from Auto title in Florida
My stepson and myself are on a Florida title for a 2002 Chevrolet Camaro. I am the Primary and he is the secondary and the Title and registration read (My name) OR (then his name). I am also the primary on the contract that he has defaulted on. I have made current all past due balances and the finance company is happy about this. I need his name OFF of the title for insurance reasons. My insurance company requires ALL names on the registration/title to be rated. He has a bad rating and I have a good one. In lieu of making his payments current and avoiding a repo against him, he is willing sign any form necessary to clear his name from the title/registration and forfeit any and all assets that he may have in the car. What are the steps in Florida to make this happen? I am probably trying to make this harder than it really is but any advise would be greatly appreciated. What forms do I need? It seems a BILL OF SALE transfers BOTH me and him to someone else. I want to be the ONLY name on the title!