Wheel $ Cockpit edit

Somebody can tell me if it is possible to edit the cockpit and the wheels using the Paul Hoad's Car Editor (or other software)?

You must use Gp3edit.

i would have a look with the cockpit editor if you're talking about steering wheel and led layout in the cockpit

No.

I'm talking about the cockpit and wheels (more specifically the tyres) shapes.

With Car Editor I can see them, but it is impossible to edit.

I want to change the mirrors position, the widith and the height of the wheels, but Car Editor always crashes when I try to do this.

sorry, thats not my cup of thee

Car Editor is bad about it.
Try saving often as you modify, by clicking on: File => Export