Cosmopolis Grand Prix

The Cosmopolis Grand Prix is a racing track featured in the Speed Racer film (and the tie-in video game).

Background
It is one of many courses sanctioned by the WRL. Located on the center of Cosmopolis, inside a massive colosseum. This is where the final race of the film takes place in, where Speed Racer goes against Jack "Cannonball" Taylor and many other famous drivers.

Racer List
According to the racer list from the film, 40 racers participated in the Grand Prix. The list appears to have some inaccuracies, as several of the drivers listed don't appear in the movie, and several sponsors are not listed here. Here's the list as it is in the movie:

Actual Racer List
Here's a more accurate list based on observation. If any innacuracies are noticed, feel free to edit.

Trivia

 * The track was originally going to only feature 39 racers, one short since Taejo Togokahn refused his invitation; but thanks to Togokahn's sister, Speed was able to take the 40th spot and race for the prize.