How to change model for vehicle in vehicle example?

There is Vehicle example with Sedan model. How can I change it to some other model? For example for Buggy from VehicleGame demo? I exported VH_Buggy assets. I change skeletal mesh in SedanBP class and get it in form of buggy but it is not moving and I can’t change Wheel Class. When I choose VH_Buggy_WheelFront it’s value remains None.