Vehicle scaling with wheels

Hi, guys.
I have the idea to scale my car according to terrain scale factor.
But I have some problems with wheels position scaling.
Is it possible?
Let’s take FancyCarTest for example

//Load model and get chassis Geometry
            carNode = (Node)assetManager.loadModel("Models/Ferrari/Car.scene");
            carNode.scale(2); - here I scale all model with wheels and it is work good.
            carNode.setShadowMode(RenderQueue.ShadowMode.Cast);
            Geometry chasis = findGeom(carNode, "Car");
            BoundingBox box = (BoundingBox) chasis.getModelBound();

But what about wheels position

Geometry wheel_fr = findGeom(carNode, "WheelFrontRight");
wheel_fr.center();
box = (BoundingBox) wheel_fr.getModelBound();
wheelRadius = box.getYExtent();
float back_wheel_h = (wheelRadius * 1.7f) - 1f;
float front_wheel_h = (wheelRadius * 1.9f) - 1f;
player.addWheel(wheel_fr.getParent(), box.getCenter().add(0, -front_wheel_h, 0),
        wheelDirection, wheelAxle, 0.2f, wheelRadius, true);

box.getCenter().add(0, -front_wheel_h, 0), - changing zeros here doesn’t do anything.
How can I correctly change the wheel position according to my scale factor?

I am not sure if I understand correctly but:
Does your car.scene file contain your car with car wheels?

If yes, carNode.scale(2); should scale your car and the wheels, and they should be already correctly positioned, right?

Yes, for example I took default test from jme github - FancyCarTest.
And car.scene contains car with wheels, it also contains wheels position, something like this

<node name="front_right">
      <position x="0.000000" y="0.000000" z="-0.000000"/>

And after carNode.scale(2); wheels also scaled but their position is wrong.
And for what then this line ?

player.addWheel(wheel_fr.getParent(), box.getCenter().add(0, -front_wheel_h, 0),
        wheelDirection, wheelAxle, 0.2f, wheelRadius, true);

As I understood, firstly we put wheel in centre (0,0,0) and then move it to box.getCenter().add(0, -front_wheel_h, 0). But changing Vector3f here doesn’t do the trick.

When you say “but their position is wrong” - can you show us a screen shot so we may see the result and maybe work out what’s happened.

Something like this. So wheels even rotate around some axis