The entire movie is a chase sequence. This movie is a classic in the sense that it can be compared to a silent film movie of which some films consisted of just the chase. As a film major I've seen old black n white movies like that and in my opinion, Mad Max is like those films but on crack.
No arguments or long monologues needed in this film.
The script wouldn't even get greenlighted in Hollywood.
It had to be self-greenlighted because the actions itself is the script and can only be produced by a visionary director who already knows what's going on because most of the movies direction was in his head and not on paper.