Take the engine and transmission out. After all, they are made of steel and iron. Heavy business...
Why not remove anything and everything that has any weight or provides any comfort? Being primitive is now in style. After removal of all that needless stuff, perhaps you can push or pull the body shell of what used to be your motorized vehicle around with you as a temporary shelter. Maybe you could invite some homeless folks in to camp out in it with you. They might help you push your shell of a car (now rendered primitive) if you offer them something they want.
Yep, it's been said before: the cure for famine is a starvation diet.