My boat's hull happens to be made of 1/4 inch metal plate (6mm) which is apparently the same as the protected underside of a Tesla. I've hit a concrete block, gone aground a few times and generally have a bit of excperiencing with impacting hard immovable objects with a vehicle protected by a 1/4 inch metal plate.

It takes a LOT of force to pierce 1/4 inch plate. My boat weighs 12 tons, and it hardly has a dent from the collissions I and previous owners have been in.