Vehicle safety that can end fatally for occupants?

Admittedly, this problem will most likely not occur in the life of a driver – but… Recently, the media described the case of a taxi driver who drove with his passenger in poor visibility into the Rhine and who could only free himself and his passenger from the vehicle by hitting the side window. The Volvo XC90 has as option side windows made of relatively break-in-proof laminated glass. What possibility does a vehicle occupant have? The front window is also out of this safety glass. It will not be possible to step out of the front window (is it glued?) because of the water pressure. The rear window is not reachable wg. of the luggage net/grid and the windows can not be opened wg. of the falling electric window lifter. Is there a possibility that I have overlooked? Of course, it is clear to me, i.e. every safety device in the vehicle also has a shadow side … Dino