everyone is trying to make money so they will bluff for sure. In LA it might be hard as there are tons of rich people, maybe you might have to find a more low key dealer who will be willing to work with you. My brother got it from McKenna BMW and they have pretty good pricing from what I saw. have you talked to them?
also if you look really young, take your parents or something. Just saying as lot of the dealers think young people don't care about money and they will pay whatever the dealer asks.
I have always used cars.com to get some quotes from dealership and then take the lowest offering and call local dealers to see if they will beat it by a little. That has always worked for me til now. Let's see now the new year does for me.