I deliver to a Tesla dealership/lemon farm everyday, and they had one on display. It had a smudge on the driver side rear quarter panel that they never got buffed out.
It's sad that there's nothing your can put on the metal, like something to paint on top of it or something. Like something clear, or in different colors even. Ah here I go again, being crazy with my imagination.
They couldve probably galvanized it, but didnt because they are stupid. The type of stainless steel they used is finicky at best as I understand and isnt really designed to be in open outdoor environments, so they used it for a car. I dont fully understand the details of why its fucky just that it is, I aint a metallurgical expert im a redneck who just knows what is good steel from texture, taste, and smacking it into shit.
That's what buffing does to paint as well, but it's not something you do when you need to clean it (whether paint or stainless), it's something you do to repair cosmetic damage.