If they were as cheap as pizza pans, I imagine that many of our members would use them. They are more aerodynamic than flat covers, right? Sturdy, actually attractive, and some people actually know what they are and why to use them.
However:
They are prohibitively expensive.
They do not have a good method of attachment.
Prone to scratching.
I forget what else I was thinking, but I will add to that list as we come up with more limitations.
I was thinking that if you took one moon cap, made a plug of it, and then cast an ABS disc, with a large hole in the middle, and a metal ring on the inside, and then insert pieces that match different lug patterns, and shaped washers that go between the lug nut and wheel, extending out to secure the cover. Then you screw in or otherwise attach a lug nut cover.
What parts of that do not make sense?
