... is that at times the viewer forgets it actually is a documentary and gets caught up in the action. Adam Carolla achieves such a feat in this film, a feat no less amazing than those of the engineers who built the cars showcased in the story.
This is achieved by the most aggressive use of sound bites this reviewer can recall in the documentary medium. And some of the best editing. Even though different voices are talking about different things, it seems TO THE VIEWER that one voice is telling a continuous linear A to B story, from beginning to end.
Amazing.
As for the story itself, it is indeed iconic because it marks the end of an era when (as explained in the film) it was both possible and even desirable to enter the race with a "factory" build package which in theory even working stiffs could order from their local dealer.
Another bonus for Corolla is that he brilliantly manages to coax the viewer to overlook that this is really a David and Goliath tale -- Ford possibly could have purchased Italy itself after Ferrari turned his deal down -- and allows you to think that these two contenders may have been evenly matched. This too heightens the drama.
Finally, the coup de grace, the timing makes it possible to have the same personalities who were in the thick of the action appear on camera as they are in 2017 ... which again makes this all the more dramatic.
Great film.