Anyone recommend a little dealership for cheap cars in BR?

I'm looking for a bucket with wheels. I don't care if its ugly, if it whines, or does not have air conditioning. I just want to put a car seat for my son in it and drive from school, work and home which is less than 20-30 miles a day. I know I am not going to get anything long lasting for cheap. I am just a little desperate for options. Anyone see something sitting to the side with a sign up or have a recommendation for a small dealership that they know about?