Sounds like a supply problem with copper. I read a couple weeks ago about some progress with salt based batteries. Progress is being made on that front. Progress that would be exponentially faster if the manufacturer's wanted to.

Regardless of the materials issue, the industry could adapt. There's oodles of money to make significant change, and of course they would if they had to in order to continue making money at all. Just like any industry that experiences challenges. Fracking was once considered far too expensive. Then they figured out how to guide drills beneath the surface and what do you know, now it's mainstream.

Ideally, if this were to occur, the industry would realize what you've pointed out and simply reboot all the small hatchbacks and wagons they used to make, as a method of stretching the amount of minerals we have over a longer period of time.

Blue sky thinking but maybe the governments of the world would realize the mineral issue, and instead of allowing 100 million cars to be manufactured each year, they took those minerals and created a transportation network with them that would render personal vehicles irrelevant.

I don't see that happening in my lifetime though.