Different shading modes

For debug options aside from just mesh visibility mode, i'd like to see different shading modes that works just on car's model.
Like:
1. Flat grayscale mesh view
2. Normal map with or without speculars
3. Specular map only
4. Wireframe: overlay, pure, with normalmap
5. Leaving just suspension looks for example
and etc.
These features can be done on any engine.

 

All of that is already possible to do.

 

Where?

 

enable advanced options in settings, then go to the debug tab, scroll down to "visualisations"

 

This can be done with the visibility toggles in the vehicle customization / part selector.