Typically I will not trust car sales people, you have to teach them the ins and outs of their own products but they like playing stupid sales tricks I hate and that turns me off. I buy for a living and I like having a win-win long term relationship with my vendors, I like somebody who knows his product and is straightforward, I feel I got that with Randy at Central Mitsubishi.
I did contact by email all the Mitsubishi dealerships within 100 miles, including in NH and RI, some did not respond at all, some responded but had poor follow up, some refused to negotiate by email before seeing me, some would not budge on the price.
Typically dealerships want you to come in and they think they have you when that happens. I do my homeworks first, you have to know the market value of the car you are getting and every little details about it, then I like negotiating by email first, the way they respond gives me a good feel of the people I'm dealing with before showing up to finalize.
Randy was hands down the best experience of all dealerships, by a mile, and that's why he got my business (2017 Outlander SEL S-AWD Touring with some accessories). Closing took about 2 hours on a busy Saturday. The place was packed with customers, I saw the Fi Manager, he called me 30 min later, everything was ready to sign and we were done.
The only easier experience I had buying a car before was with Carmax on used cars; Carmax is like putting an item in your cart and checking out but there is no room for negotiations, you pay sticker.