Article in the Washington Post on escaping a car in the water:

Advise I didn't know.

You have till the car submerges to get out. After that you are rarely going to make it.

Car window breakers won't work. After you sink, even a hammer won't work.

Open the windows not the doors.

Don't get out first push the kids out (biggest first).

https://www.washingtonpost.com/travel/tips/car-underwater-escape-bridge-collapse/

Frightening link to an AAA study in it.
Contains the following:

'an increasing number of vehicles are being built with laminated
side window glass, which is nearly impossible to break.'

qjs