I shaved a few bucks off from what the dealer wanted, yes... Much as I wanted a Fortwo, I could've just as easily walked away and waited for my reservation car to come in, and the sales mgr. at the dealership knew it, so we were both ready to talk.
I settled for a bit more car than I wanted (I ordered a coupe, not a cabrio), he settled for a bit less money than he wanted, everyone's happy.