in deep! need help! !

SpareParts said
Dude, get yourself a tech book.

(I'm not sure ) the NHRA or anyone cares how your windows work

Or how there attached?
I seen nothing in the book.
Why even have a window if it's only attached by a thread?
I was trying to get an idea from someone who is sure!
I don't care how they work just as long as they pass tec.