Sorry This is a repost from one of the other threads. (may be they can be merged). I did not know how to link the posts.
Human body is designed with self diagnostic features.
Everyone will feel suffocated when he/she get short of oxygen (not just air). which means, if the gas you are inhaling is odorless, tasteless, colorless and oxygenless, you will feel suffocated.
All said and done, cars are not air tight like air crafts, even when all the doors and windows closed. there are numerous holes on the body connecting out side world. Had it been so, when you park your car in sun, it might bang the door on you like when you are trying to open a pressurised container or a gas cylinder or might explode due to pressure.
But the chances reduce when the water level around the car rises and starts closing the holes. and there are very few of them at the higher part of the car.
Door locks are mechanical, but central locks arre electrical. In case of a failure central locking might fail. but still every one will still be able to get out opening thier own doors.
Commonsense is the biggest safety feature in the world, and works on any kind of automobile. It is best to have trust in that and get out of the situation at a good time when you still have things in your control. |