negotiate

What sort of discount can you expect to negotiate from buying 10k to 15k car. I doubt anyone ever pays the price on the screen or what cars are advertised for, so what sort of discount have you all been able to negotiate. In my case I am planning a trip to Europe in the next couple of weeks to...

Thinking about buying a E350 Couple. The dealer will not move on the price, which I can understand. But he will not move on the finance deal either. He says that its run by MB and he cannot move at all. Is this correct or is he paying hardball?