hmm, I think the plexiglass would be kind of cool. You could see all the wiring and what behind the dash. I guess the main issue is it being strong enough to not brake, especially when you add a bunch of holes for all your stuff. I was reading about windshielf material and I believe the consensus was to use lexan because plexiglass makes knives when it brakes while lexan doesn't. If your going that route I'd look into it.
^I wouldn't listen to what I say. I don't know what I'm talking about. Please use the search feature.