yeah its what bullet proof glass is made out of and NASCAR windsheilds, instead of the glass smashing into a billion peices, rocks and stuff either bounce off and dent the lexan, or it gets stuck in it, lexan is super soft so it can bend instead of crack and blow up in your face. what nascard techs do is they put a peice of film overtop of the sheild, and when the film gets a bunch of crap stuck to it, they tear it off and use another one, or they layer it and tear each layer off when they need too
also cobra helicopters use lexan as their sheild too.