There are a few auto accessories that ought to be illegal. (Or if they already are illegal, enforced.)
1) The fancy rims. The rims keep turning after the vehicle is stopped. That gives false visual information. At some level it appears that the vehicle is moving when it isn’t.
2) CDs and pendants hanging from the mirror that scatter and reflect light. Not only does the glare get in my eyes, but it does so in a random pattern making it difficult to adjust to. Everyone understands that having your brights on is rude. An old friend used to keep an enormous spotlight in his car, and if anyone behind him had their brights on too long he would shine right in their eyes. Those folks wised up quick.
Visual clutter and disinformation is an actual issue. A friend of mine got in a car crash. The car in front of him was stopped, but the brake lights weren’t on, and he plowed right into it.
None of this is because I am anti-bling. I am pro-bling, it amuses me. For instance, I am in favor of huge crazy spoliers on Honda Civics, and neon all over the undercarriage. It also amuses me that probably no one who has that kind of bling calls it bling anymore. There’s a more current term by now.