Wow, that's just so impressive! A few remarks.
First, I looked at the participant list and there's one car in the race that was built in 1904, and thus could actually have participated in the first Great Race, in theory. That's just insane!

Second, most of the North America stage of the race goes through Canada. Why is that? Isn't it fast enough to zoom through Wyoming or Montana or something? Or are they trying to avoid traffic jams going around the Great Lakes when they hit Chicago? Maybe the sponsors are Canadian companies? I remember in the movie, The Great Race, there was a stop in Texas, a Wild West town called Boracho (which is Spanish for drunk- take a guess why they picked it!)

Third, on the subject of the movie- that was one of my favorite movies as a kid! The Great Race, from New York to Paris- if you're going to be driving in this race or following it, and you haven't seen the movie yet, I really recommend it. SO hysterical! I know it's mostly parody, but there are not many movies in which you have sword fights, bar fights, pie fights, a hero all in white, a suffragette handcuffing herself to a men's room door, a villain with a black mustache, a trip across the ocean on an iceberg, a Prisoner-of-Zenda-esque identity switch, pigeons carrying messages, and an interesting encounter with the Eiffel Tower.

Last- good luck on the race! That's going to be incredible, and we expect lots of updates!