Fuck Cars
A place to discuss problems of car centric infrastructure or how it hurts us all. Let's explore the bad world of Cars!
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You are thinking about Safety glass and not tempered glass. safety glass has plastic film laminated between some layers of glass.
Tempered glass doesn't have that and when stressed at a small point, crumbles quite satisfyingly easy.
You are correct, I had terms swapped around in my head. Tempered glass is what glass break devices were designed for. Newer cars are swapping their tempered glass windows for laminated glass windows which traditional glass break devices do not work on.
Yeah, there a few cars out there that do have safety glass rather than just tempered glass installed as side windows. But they are fairly uncommon due to the high cost and at least one engineer's thought that safety glass might not be the safest thing in that application. Because it does make it more difficult to quickly gain access to an injured person if needed.
I think BMW has a couple models with safety glass for side windows. But it's been a hot minute since I have needed to concern myself with such minutia.