The Möbius idea was the starting point. The initial plan was to just have a straight track (like in the video) with a “Finish” banner halfway: the player was supposed to see that, also see his dot on the minimap is approaching the starting point, and to think he’s arrived. But actually this is a Möbius strip, so he’s now on the “other side” of the streak and must still complete half a lap.
I soon found out that the surprise effect was not enough to justify a track concept. So first I added some decoration (tunnels, nonsense signs) like in the video, and then I made it more challenging: in the edition I’m going to publish the Möbius space circuit has undergone some gravitational warping and now slight bends have appeared. The skill will be in managing to launch the car to 219 mph without losing speed on the bends.
The mod will feature other two tracks, but real-life. Goal is to choose “the best from the past, the present and the future of F1”.