After 1,5 years of pause, I've finally finished one of my maps, Race City. The map supports up to 32 players (8 vehicles with 3 passenger seat), and it's fully automatized.
If someone is interested, here is a video of the map from 2015: https://www.youtube.com/watch?v=xI1_xiq7dc4
And one after the release (2016 sept): https://www.youtube.com/watch?v=w4K_KaeT0ws
You can check out the map here :)