Luna car Center mike FRAUD SCAM RIPOFF TOO MANY PROBLEMS san antonio, Texas

I have put down 3k$ down they worked with me really good the sale-rep was a good man
with a kind heart.
The vehicle had issues and i have made it on the list b4 i signed and he said that it would be fixed.
I also told him about new tires because the rear was riding very rough and he said it will be fixed, while i was signing papers.
after i have signed papers it was time for the dealership to close and now i was left with the car. the car wasn't fixed and had not been repaired i didn't notice until i left the parking lot and couldn't make it home.
every time i said that this needs to be don't they say ill get it fixed ill fix it.
now they gave me a loaner car and are still working on the vehicle 2 days later and they said mechanic didn't do it yet they took it to a shop and they were charged more than they want to pay so they brought it back and are trying to do it themselves.
I will not take it off the lot if it hasn't been repaired what can i do to get my cash back or a different vehicle they do have junk and good vehicles it all depends on your credit and down payment of how good of a car you can get.
I did notice half of the lot has good cars with lots of engine problems that they cover up.