Originally Posted by Dudesky
How about flotation airbags that can be deployed in the event of flood or driving into a body of water?
Actually that's a pretty good idea, make them inflate when water is detected in the engine bay. But where would you get enough air to lift the whole car. Tanks can be pretty heavy after awhile. It might be more practical to have a drop down air mask or something that will give you a few more minutes to breath.