The information contained in this article is information I truly hope you never need to use, but it so vitally important, that it is worth the few minutes of your time it will take to read and digest it. If you are involved in a car accident that ends up with your vehicle sinking in water, this video will explain the exact actions you will take.
For every foot that your car sinks underwater, about 850 pounds of pressure is added to the car door, in effect making an escape via that method virtually impossible. When you think it through the deeper you go the more water there is surrounding your car, so, of course, it makes perfect sense.
One thing I learned from this video, which I found quite amazing, is that the glass in your windscreen is totally different from the glass in your side windows. The windscreen glass is designed to absorb any impact and collapse slowly but without shattering. The windows in your car doors are extremely strong in the dead centre but very weak around the edges. So understanding that fact will help you instantly if you are trapped inside your car. This video is really well made and is educational both for you as an adult, and your children. It could save your life so please spend a few minutes watching it and then share it with your friends and family.