Okay, so I'm pretty sure this is unused 99%, in the games files the course uses shared portions of the map that are loaded and unloaded, each finish line for track 1 and 2 has it's own model portion since the finish line is at a different place in the track, and since sequel tracks in the games use the same course but different route they also have a complete model for all of the signs and bariers, weirdly enough there's a 3rd one for a 3rd track but it seems that the developers did not model it all the way, it could have been planned but scrapped, It's very close to the 1st version but the shortcuts are all blocked off and there are barriers missing at the tunnel section. there's also no game footage of it online, I even tried switching the files out just to see, but yeah it crashes.