2. Don't waste time with phone calls. The classic way is dealing via fax, but now it's easier to use email. In my last purchase I knew the model and trim level I wanted, but didn't care about color. I emailed every dealership within a ~1.5 hour trip from my house and told them what I wanted and how much I was offering. I got someone about an hour away to agree. The dealer 15 minutes from my house agreed to the same price after I told them.
They use it to get you to come back into the dealer every few months AND they hope you will buy another new car from them when the warranty runs out.
The dealer makes a huge profit on you taking back a full service history high end car as a trade-in