Google stated the pastic headlight lenses were first introduced in the early 1990's But the 78-79 dodge magnum has clear plastic headlight doors. Which technically are not the same thing, but they look and function the same. And was wondering what kind of plastic they used ? And can they be restored like modern car plastic lenses. And what's the best way to clean or restore 42 year old plastic ? Replacement lenses are not made, nos and Good used ones are expensive. Or just leave the headlight doors down? All suggestions are appreciated. Thanks!