Black windows on cars

I have noticed many vehicles with black windows. I haven’t found a suitable solution on the internet to fix this problem, except using Zmodeler, which I don’t have. My question is: Are there simpler solutions?
image

Nope, it’s a model thing, which can only be fixed in ZModeler3. And you might want to stop using those vehicles, you’re violating IP rights by using IRL models and brands - your server will be shut down for doing so.