I think everybody should know about this. Most cars have headrests like this, and they’re always available:
https://lifehacker.com/use-your-headrest-to-break-a-car-window-in-an-emergency-1496717463
Well, at least many cars do. I know mine does. However if I ever drive into deep, rising water, the first thing I’m doing is opening the windows, if I can. Maybe I’ll look at getting a centrepunch or escape hammer for my glove box.
Thanks.