This is not an intermission between the two parts of a very long film to enable you to fill up your popcorn, although that is one interpretation. It is also not a break in the proceedings or meeting to allow for coffee. For me it has a deeper meaning.
This car has protected me from the world. It has this shield of steel which protects me from exposing my vulnerability. It keeps me at a safe distance from other people and it shields me from the wind and the roses and the excitement of what goes on outside. It is so convenient and keeps me snug in this space I call my comfort zone and my personal space. Nobody can reach me here.