Buddy of mine, ~15 years ago, bought a couple cars by spamming the sales department via email what he was looking for in a 1000 mile radius then playing them against each other. I tried it to a lesser extend a few year after that though and they basically weren't playing ball.
There is a reason a lot of auto communities call them the "stealership" and then post their $1200 radiator replacement quotes.
It takes a lot of money and time to spin up a new production line, and you don't really effect total sales that much... as someone willing to spend an extra $50k for a C8 Corvette or a Bronco will also happily pay sticker and wait 12-18 months.
This happened with the SRT Viper. Dodge overestimated prices in the first year of new model production, so they dropped MSRP by like 15k the next year. Owners sued successfully to get $15k back.
Now these $80k cars are selling for ~$150-250k. People who purchase Vipers made out like bandits.