I used Lexan for the side windows & t-tops in my '84 Camaro. 3/16" for the sides & 1/8" for the t-tops {but if I did it again I'd use 3/16}. I did it to save weight. I think Lexan is what they make bullet proof glass out of so I'd be mostly concerned with not being able to get out {if doors jammed} in case of fire, etc... You could take the 1/8" stuff I had & bend it in 1/2 & step on it & it wouldn't even break. I shot it with a .22 rifle & didn't break. I just used the old glass as a template & cut it with a Makitta grinder & cut off wheel. I either had to have them all the way down or all the way up as they were to flimsy for 1/2 way up... I used the dark stuff so it looked tinted....Tented are legal in Nevada {or they were then, not sure if they still are as mine aren't tinted now}.... But it's expensive & if it's not expensive make sure that it's really Lexan & not just plexiglass... Hope this helps.... Bill