Hello all!
I am getting quotes online and through the phone and of course all the offers are vague and not official. 
Before I head down to a dealership, which could be several hundred miles away, how can I be sure the deal I am offered will be the same when I arrive and they won’t try to pull anything on me?
When I narrow it down to the final 2 or 3 dealerships I plan on having them email me a detailed offer that lists all of the charges and have it match what I see when I sign for the car. If they email me something with specific numbers, will this be good enough to count as something official that they can’t break like a contract? I doubt they would sign an offer sheet with a signature or anything.
Is this something I should be concerned about? Do dealerships typically alter deals at the last second once they have you in the store?