No, I still want to own fancy cars, but I would want to hide them from my kids for a period of time!
My theory is that you don’t want to make them feel spoiled from an extremely young age, as that could make it part of their personality. Rather, until they are, let’s say 7 or so, you would try and make them humble (not exposing them to too much fancy stuff, teaching them the value of something when they are), and then I would expose them to fancy cars, etc.
Probably completely wrong in terms of reasoning (and your I can see where your comment is coming from), but my main objective is just to make my kids humble (and not spoiled brats)! If there’s a way to do it even while exposing them to too much overly fancy stuff (there probably is), I would definitely do it.