I really cannot wait for this tool to come to the game and I am desperately hoping it has features allowing you to pick tracks, set up teams or at the very least, assign an AI driver a certain car as well as to change that AI's ability and name (for more immersion and realism). At the moment its quite boring racing Formula cars where there are potentially 3 of the same vehicle on the track. Reeally hope this tool comes soon and has all these features.
It's on the roadmap, so I expect that we'll have it this year. I am willing to wait so they can smash any bugs but I am also excited! Once I see custom championships, I think I will be dropping all of my other racing sims lol..