Interesting, I woukd have…
Interesting, I woukd have expected Tesla to use a 3 series stainless for an automotive body application, as road salt is corrosive. 3 series are non-magnetic, wouldn't hold a magnet. They must have used a 4 series,such as 409 they use for exhausts. 409 is more corrosion resistant than carbon steel, but no where near as resistant as a 3 series. Probably trying to cut costs, maximize profits.