Restoring Glass??

[vintageracer]

Depending on the car just buy new. Complete glass kits for mainstream cars are cheap and in many cases can be had already "tinted" to match your needs.

I have tried to polish original windshields and side glass with moderate success. There is nothing like a brand new clear winshield/side glass for a car you drive and enjoy after living with pitted, scratched or etched glass.