Well, I think I will investigate and see if my 1963 Avanti has laminated side glass, then I should be OK, but I know for a fact that my rear window was tempered glass, because we blew it out at 185 mph on the 5 mile track about 8 years ago and it took 75 volunteers and my race team over one hour to pick up all the glass,
Boy did I have to buy a lot of beer in the pits that year! So after that experience we shaped the rear window into the correct form out of Lexan and bolted in it, been fine now for the last 8 years and been OK at 216mph. I've got some neat decals on the side window I don't want to lose by installing lexan, so I hope the side windows are laminated. Dave