Anyone install Lexan windows?

There are many problems with Lexan and polycarbonate windows in a street vehicle.

1. These materials will scratch relatively easily and with time, visability becomes an issue.
2. These materials will not shatter like glass, which seems like a desireable attribute, until you get in an accident and can't get out of the car or people can't get you out.
3. Because these materials flex, you have to be careful where you put these materials, as most unibody chassis vehicles are engineered to utilize the stiff glass to strenthen the chassis. For example, a windshield would not be a good place to use this material in a street car.

Lexan and polycarbonate are excellent materials for the race-only vehicle with a full cage, but I would not recommend this on a street vehicle. Besides, I do not believe windows of this material are street legal. I am not sure what the bullet-proof window specs are on some of these "special service" vehicles that tote around these VIPs, but perhaps there might be some info elsewhere on the net.