It’s also the aluminum used in parts of the vehicle.
When the current generation of the Ford Super Duty was testing, one caught fire.
All that was left was the frame, axles, and firewall sitting atop a silver looking blob (body work is all aluminum)
Yes, that must be a sight! Like the DeLorean, all aluminum body. Some of those folks that lived in the Paradise town were lamenting that they lost their Corvettes - all fiberglass non-metal body so nothing much left after the fire. These folks lost everything, so sad.