Of course they’re street legal? You just can’t buy them in the US. They’re all over Mexico and they’re great.
Why "Of course" ?
If they aren't sold in the US why the automatic assumption that they conform to US automotive legislation?
Yeah, I was wondering about that. Someone in the UK had a Cybertruck confiscated by the police because they're not approved here. https://www.bbc.co.uk/news/articles/cz0lldd30xlo
Not sure why its baffling. If you are near the border you will quite often see out of country plates (Canada/Mexico). I am guessing you would still need some kind residency to purchase the vehicle.
Not sure what it's like today but historically crash standards in Mexico did not exist. Toyota for the longest time was selling 20+y/o models as brand new. The crash tests of those were startling. It may have improved in the last few years though.
You can lawfully drive through land borders in most countries, with permits and such. The plates don't change themselves when you do that.
I'm baffled by the multiple levels of irony if you could go into Mexico and buy an EV that you can then use in the US. That would make even Elon's head twist off.