If you want 2 ways AI traffic for Track days (Racing Weekend) here is the "fast_lane.ai" that I did. It`s a closed loop so each lap for the AI is twice as long and the improv roundabout in the woods adds to their times. But the main purpose I did it is to fill up the road in offline and make it more busy and dangerous. Prettier too
If yours "feldberg_wet" doesn`t light up when the normal one does, go to your "\AssettoCorsa\extension\config\tracks\loaded" folder and there you should find "feldberg.ini". Make a copy of that file in the same folder then rename the copy to "we_fbg_1.ini". That way the Content Manager has the config to work with and the wet track lights up at night. It would be nice if the author includes that in the install package for convenience