Wheeled vehicle surface detection

Development Programming & Scripting Blueprint
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1

I would like to know how I can make my wheeled vehicle’s wheels detect the ground surface from a raycast and then change the friction, speed, and damping rate etc. Clearly UE4 does not allow you to modify wheeled vehicle values on runtime for some reason, how can I make this work?

I do not want to make a car from scratch by adding wheels and the body separately

2

Couldn’t you just use the physics material system to do this. You should be able to detect type of surface and then do your friction calculations

3

Yes i could, but the problem is I cannot change the PhysX wheeled vehicle properties with blueprints