Preventing players getting stuck on func_tracktrain

[SuperTanker]

So I am trying to make a payload race map with the central gimmick being the two carts being replaced with these giant "behemoth" vehicles.
I've been noticing issues with collision of the walls on the inside of the vehicle (the capture area), especially while the vehicle is turning; If backed up against one of the walls while in a turn, the player gets stuck in place.
Ive tried putting clip brushes inside to no avail, and I might try push triggers, but I am wondering if there might be a setting or brush type that could help with pushing players away in a non-intrusive way.
Here are the settings I currently have for the func_tracktrain: