VehiclePhysics Realtime

Is it a way to update vehicle physic without loosing velocity, for example, I want to set new MaxNormilizedTireLoad, after set it I make:


But when it happen my vehicle stop moving, and all forces sets to null, could I set MaxNormilizedTireLoad witout stopping the car?

Any progress about this?

It`s a pity, but I have found no solution(