A few years ago I had, on several occasions, a reoccurring nightmare of driving a car off a bank into a river, or the sea. I couldn’t escape from the car, and always woke up when the water started rushing in, and I couldn't breathe.
These dreams led me to do a little research into how to escape if this should happen. This both helped my dreams, and eased my mind for if such a thing happens in future. The following is a simple list of what you should do in the event of driving into deep water: