Update on Detroit:
Figured out what was wrong with the crush cars, the UV maps had different names from the rest of the meshes in the stadium.
Also, as someone pointed out I fixed the Ford Field to all caps, and changed the font (to the closest I could find).
I also baked all the ramps, however, the backflip ramp bake doesn't work in game for some reason.
Let me know what I can improve! (Before you ask, Detroit #1 didn't have inflatables as starting gates)