How do you get a bulletproof bentley on mafia wars?

I thought that you needed to get 20,000 chips in Texas Hold Em' Poker. I have over 37,000 and no bentley. what's going on?|||From what I can tell, it was a limited time item...probably to promote the Texas Hold Em' application when it came out. I think it's gone now, and the only chance you have of getting one is taking it in a fight...although I don't know how you can be expected to do that.