Sold me a lemon. Didn't even realize I was signing...

Sold me a lemon. Didn't even realize I was signing lemon paperwork. Slipped it over on me on the sly. The car they sold my grandmother had a warranty on it that was worthless. The dealership wouldn't hold up on their end of the deal when she needed a repair on the car. It is sad because my grandmother is very poor and lives off of social security. Shame on this dealership for ripping off an old lady who has to work at 70 years old.