Actually I believe reprocessing metal scrap is much cheaper than mining ore. That’s how scrap metal dealers make a profit. Maybe someone on here with expert knowledge can chime in.
That is the case. But, it would make more sense to "mine" the millions of rusting wrecks blighting the landscapes in junkyards, rather than to destroy functioning vehicles.
Yeah, I know -- that wouldn't send a tingle up the legs of the green weenies, nor would it send baksheesh to Øbammy's union thug buddies...