Yes sure it's not all times simple to create stuff from a engine where the code is close,
but leadwerks is surely able to find this problem after making more tests.
He have already done a lot nice stuff.
You are a lot more limited to use the vehicle if you can't change the code, many situation can need modification in the code from the user's.
Exemple make vehicle with more that 4 wheels, or make quad steer wheels like big foot, or make broken wheels stuff like this....
On this case some modification from the user is needed, or leadwerks need to make a very big implementation to make all of this possible to use.
Remember you, the JointLibrary.dll is a open source maybe you can take a look in the code.
Here this code show how to implement a vehicle controler to control the newton vehicle in 2.0
http://evadlevarg.googlepages.com/tutor ... ehicle.zipAbout the stuck wheel:
I think it depending from the way how the wheel setup is make or the way how the torque and brake is apply.