Electric vehicles have a manual handle in case of electrical failure.
However, if the car was far enough in the water the doors could be held closed by the pressure.
The current panic by the deep state to try to recover the binder documenting Obama using the intelligence agencies to promote the Russia collusion hoax, reminds me of The Hunt for Red October…
Are the windows electrically powered?
Driver now trapped?
No emergency glass breaking tool onboard the car?
Panic?
Flooding?
Drowning?
Physical ailment preceding the event/movement of the vehicle?
Hint: break off rear view mirror and use it to bash open an inoperable window, or use the metal buckle in a seat belt to bash open the window.