WSJ page B1-B2 has article on
Tesla’s many problems using
“full hard heat treatment,
unpainted but exterior surface polished,
and somewhat bulletproof”
stainless steel alloy
for their Cybertruck.

Just about anything you could imagine to go wrong - has gone wrong
since the effort started in year 2019.

Bugs are predicted to continue into year 2025,
although some trucks will soon be sold to customers.