Sorry for bad english (google translate).
It would be interesting to combine 5-10-20 REAL tracks into one super track.
The overlap problem can be solved with the help of bridges as in the diagram.
How do you like the idea?
Are you suggesting all the tracks would need to be completed to complete one entire lap or are you suggesting something like a motorsports park where you can just drive to a different track if you like?
Either one sounds cool and the second one, we have something like that in AC already called "mega Tamada" but that is mainly for drifting.
The first one sounds like a cool concept if done correctly. It would be difficult to get the "connecting" areas correct so it feels natural. Even more so on that long area connecting the end of the last to the beginning of the first.
Is it possible to combine 10-15 known tracks into one? So that the start-finish line of one track goes into the start-finish line of another track? And it turned out to be one long track. Is it possible in theory to do this?