Or is that Sauber BMW? I can't keep track.

Williams BMW did this sometime in the early mid 2000s. I think the weird vertical fins were only there a couple of races. I don't remember. I think they scrapped them, or they were outlawed, for obvious driver visibility reasons.

I understand they will be sold in the states now and previously weren’t. Better questions to help me understand what the big deal is:

Serious question: How are these not available here if they’re so good and available globally? I know some of the Snell testing (US market?) is different from European testing, but I don’t know much about it. But how hard can it be to buy one and get it shipped here? It’s not like they’re registered. Grey market…