Best Lexan For Race Cars Question

[Old Hippie]

I want to replace the Lexan side and rear windows on my wagon. Two questions:

The last Lexan I bought scratched easily. I was told that there are at least two types of Lexan, with one having a protective scratch resistant coating. Is that true, and is there a name or that product?

What is the thickness typically used on the side and rear windows. I'm thinking the thinner the better, but us there too thin?

[Old Hippie]

I'm looking around and got this answer from a guy semi-locally. 1/8" sounds pretty thick

[Old Hippie]

After more looking around, that appears to be the thinnest most carry of scratch resistant