I saw a simple track that was very above the stadium (I think it was by skyslide), which inspired me to make this. A fullspeed track held in the sky by a bunch of really big drones. Also, the entire track looks like it's moving.
There are no stunt cams or replay, since the track is out of the normally buildable area. Can't place clip triggers outside.
Also if you want to do this yourself, build your track entirely out of items. Then place a single block at the bottom corner of the world. Select all, cut, and paste with the single block at the top, opposite corner. You now have a track floating in space.