I was taught in school 40+…
I was taught in school 40+ years ago, plan on a new car loosing ⅓ of its value the moment you drive it off the lot.
Negotiating to pay near invoice price has helped my values hold up better.
I would think getting a foundation series (essentially paying above sticker) would be about the worst thing you could do. I assumed everyone paying extra to be first just really wanted one, and knew there was extra cost.