I kind of do something similar but I don't do it through an email. When I bought my truck I called up 5 different dealerships on Monday and told them the exact truck and package I was looking for, what things I was willing to give up or have variations of, and what options were "must haves". I then told them I would give them the week to see what they had (or could source) that fit what I was looking for, and work through their numbers because I didn't want to negotiate or go back and forth and waste each others time doing the song and dance of "well let me talk to my manager". I let them know I expected one number when I called back on Friday and I would be in to buy the truck that day to whom ever had the best deal. At the end of the day I was quoted 3 very very different prices for the same truck, 2 comparable prices for slightly different options. As an added bonus I had a Maclin Ford sales rep call me dishonest and that he can't believe I'd rather deal with shaddy dealerships over him when I asked him to stop calling me every day with a different price and deals on vehicles I wasn't interested in (SUVs, cars, older pick up trucks). I was happy with that how that worked out for me in that situation.
For my wife's RDX I took the print out off of CarCostCanada.ca (I think) and used that to negotiate. It made it a lot easier because the numbers we were talking about before versus the numbers after were much different. However they were not willing to negotiate finance rate at all.
If I were to ever buy a new vehicle again, I'd be going to small town dealerships in Saskatchewan.
https://forums.beyond.ca/threads/409...t=saskatchewan