PhysX is deprecated. Use the AWheeledVehiclePawn from the ChaosVehiclePhysics Plugin

PhysX is deprecated. Use the AWheeledVehiclePawn from the ChaosVehiclePhysics Plugin ,my question is how can i change it, and still have every thing from u4 where i dont lose any input i gave to my car to be controlled .Please im so lost here.