I am with ua549, you don't need a broker to get a good deal, and it puts an intermediary between you and your dealer, which could be an issue later. I was able to negotiate about 7% off a 2017 in Q4 of last year without much effort, and probably could have done better had I been willing to spend the time. I really like working with my dealer, and the service they have provided after the sale has convinced me that I would like to continue to deal with them in the future. As an example, I broke a piece of interior trim and my dealer fixed it at no charge without an appointment - that has value to me. So - net net, I haven't used a broker and don't feel you'd need one to get a deal you will be happy with.