3 -D Motors They won't give me my money back Tampa Florida

I purchase a 2007 Sebring Friday 2/14/2014. As soon as I left the lot I was on I-4 and I almost got killed. I just made it to Lakeland and the car stayed driving slower and slower.  I tried to get all the way in the right Lane and emergency Lane.  The car behind me almost hit me. The car shut down almost in the emergency Lane. I was shaking and crying. I called 3d motor but they was close. The next morning I called and they came and towed the car back to the lot. LJ said not to worry about it he was sorry and will have the car fix. Nobody called me all week. I had to call and find out what was wrong. Kept getting the run around finally Thursday 2/20 I called again LJ said the car could not be fix. I wanted my money back. I went there yesterday sat 2/22 and the boss was so rude and said I couldn't get my money back and that I have to get another car from them. After driving 3 cars previous and all cars broke down on me while I was test driving.  I said I want my money back.  I gave them 1188.00. I told him I was going to take him to court and he said take me to court. I was told to make my payment of 60.00 by someone because they was going to repo the car that I don't even have.  Can someone please help me?