You are about to get a bill from all the bbs lawyers for the advice they have clearly documented in this forum.
There might be another option. I had a problem with a car dealer and it looked like I was going to have to spend a lot on an attorney to solve it. Before starting the legal process I called the Dept. of Transportation and explained my problem to the licensing officer (one of the people in charge of handing out car dealer licenses - and revoking them). No exaggeration but within 5 minutes of hanging up the dealer called me and let me know that he had reconsidered and that the problem was solved. You might try or threaten to try that. http://www.dot.state.tx.us/mvd/licensing/licensing.htm
Fatty, Hope everything turns out well. Obviously, next time don't part with $2K until you have the opportunity to look at, and inspect, the vehicle. And if somebody tells me that they need that much money up front but that the car will be in sometime in the near future, then that's a deal breaker. I'll just go somewhere else. Because at the end of the day, whoever has the money in hand is running the show, and many times your only recourse is a lawsuit. But you know all of that at this point. I'm a prosecutor so I don't deal in civil law, but it is definitely worth a conversation with an attorney (and I'm not just saying that to line my brethren's pockets either).
If he ripped you off the first time, why did you go back? Second of all, this is a used car lot? Why would you put a deposit on a vehicle based on trust? $2k for a used vehicle thats going to come in, yet you've never seen it before? That makes no sense. I would never put a deposit for a used vehicle. Purchasing a new vehicle on the other hand is a whole different ball game.