Import FBX issue

Hi everyone I am currently having problems importing my FBX model.

When I import the surfaces of my car model, the surfaces are polygonized when shading, i.e. you can see the quads or triangles when I assign a carpaint shader.

Does any of you know the problem and maybe know how to fix it?

Thank you in advance

Did you do ‘shade smooth’ in Blender?

Hi no, i get the Files from our CAD department ( Vred, Icem Surf or Autodesk Alias )

And there it looks everything fine

Ah, sorry, I nothing about those packages…

ok no problem,thank you