otherwise every panel will become discolored over time.

Yeah I don’t care about that. My issue with my current truck is many of the places (50?) where I’ve scratched the paint off, and cleaned/re-painted it as soon as I could, have started to rust - which is probably going to result in the car being sold for scrap metal even though it’s still perfectly drivable. Eventually that rust is going to become more than just a cosmetic problem and the car definitely isn’t worth the time required to fix it properly (cut out the rust and put new sheet metal in it’s place).

I won’t be buying a cybertruck… but I definitely would prefer stainless steel over mild steel body panels. I’d like aluminium even better (stainless steel does still rust, just not as easily).