I bought my 2015 Ram 1500 4x4 Laramie in Atlanta with the bid process with the caveat that i was not coming in for test drive, etc. I am a Project Manager kind of guy used to buying industrial equipment/services. I wrote a specification for what I wanted, gave options for three colors, no trade in, cash or willing to use their financing, listed out all the discounts I hoped to gain (military, USAA, etc.) then emailed to all the Ram dealers in about 50+ miles of Atlanta - that is a lot by the way. Got ignored by a bunch, several tried the old must come in, and got two firm bids. The best bid was a great deal and closed on that truck. Unfortunately, that deal still had the old finance dude trying to add extras, insurance, warranty etc. at the end but I walked out and they quit the shenanigans.
Recently had a very smooth transaction on the 2019 Subaru Outback all by email.