This was a very cute film from the Office Of War Information about the invention and development of the "jeep". One difference today is that the quotations marks have been dropped. Today's audience viewing this will learn that the word came into existence because the order that the automobile industry designers got was for general purpose (GP) type vehicle for rough terrain.
The jeep takes on human voice and persona and we see the vehicle perform in all kinds of conditions doing all kinds of tasks. A few celebrities get into the act, many a touring celebrity rode in those things away at the front. Presidents, prime ministers, generals and movie stars.
The jeep of yesterday has spawned the SUV all terrain vehicles of today. But they're still around, a popular product spawned of wartime necessity.