Gosh I'm so clever. Ain't no dealer never gon' pull one over on me, boy!
And indeed you are clearly such a brilliantly shrewd negotiator you've discovered the best way to get one over on a dealer is to ... go buy a used car from a used car dealer. The mind boggles at the undeniable chadness of conducting business with the literal textbook definition of "con artist" -- the used car salesman. Ah but I'm sure someone as smug as yourself paid cash in a private party sale, having thoroughly reviewed the car yourself with your infinite knowledge of mechanics, engineering and of course automotive expertise, and only with the go-ahead of your bestest-buddy local car mechanic (who are also known as so morally upright and dependable you could have them negotiate peace treaties and end war worldwide overnight). You're so clever ain't no private seller gon' pull one over on you, boy!
The smugness wears thin quickly when you try to compare the stupidity of buying a new car (muh depreciation, muh shitty warranty, muh car-as-a-service, muh telemetry, muh modern manufacturing flaws, etc.) with the stupidity of buying a used car (muh depreciation, muh unknown/unproven maintenance history, muh lying-as-a-service sales team, muh non-existent warranty, muh "parts are rarer now because all the reliable old cars were murdered/literally crushed by Obama's cash-for-clunkers program", etc.).
This is my favorite argument from people who hate any car manufactured later than 1970. My favorite counter-argument is the longevity of not only my own modern vehicles (the 2010 I traded in for this car lasted 12 years with zero mechanical failures, no error codes, no unexpected shutdowns or faults, no repairs of any kind, and both its own and third-party diagnostics showed good system health and the battery pack's lifespan still over 50%). It really burns "certain people" up that some manufacturers can actually do "complex systems" correctly and reliably, to produce long-term reliable vehicles.
The wisdom of "oh it's complex ergo it must be trash" is false wisdom. A complex system that is only as complex as it has to be can be made
quite reliable. This thing ain't no Tesla -- it's actually a good car

.