broken car

I purchased a used car, as is, from a dealer. I have had the car for 2 weeks. It broke down on me. I towed the car to the dealers. They are now telling me they think the motor may be "spent". Is there anything I can do? I bought this car for my 16 year old and I don't have money to throw away.

You could try to ask for a full refund saying that the vehicle had major structural damage etc. from the beginning, and it has never been fixed properly--but it will not be an easy case if it went to small claims or other court, and some courts may say you should have had it inspected at the time etc. If they knew of the problem in any way however and hid it from you they could be liable and even be penalized for bad faith--that may be the best argument for you to make--They also likely do not want any bad publicity so even the threat of a lawsuit could help persuade them.