Is there a way to bypass the Chaos Vehicle throttle cut?

That is an issue, but the initial supposition from the above folks was that it was due to the loss of traction leading to lift of the vehicle.

There were several topics on making trails for chaos vehicles on this forum where the parameters to allow for drifting were shown as well as the code needed to get the tire marks going. Things may be different with the recent changes and what not, but it should give you a better idea of what settings to use - assuming your model is not the issue, which it can also be.