We need a SETI@Home but for model training
And I think https://allenai.org/ has something like this, too.
I remain hopeful that we'll be able to democratize the entire tech stack for this tech.
Electricity in cars is pretty expensive, at least while you are driving. (You either generate it from your internal combustion engine, or you get it from your battery which pays for extra conversion inefficiencies and lowers your range.)