Design and rendering in Catia V5.
File uploaded is 3dxml
Update: uploaded the Catia V5 R20 CAD file
I still have issue converting to step (maybe file too big)
Learn from it, play with it, modify it, but please respect its owner, me, Stelu HARSAN, and do not use it for comercial purpose. You are free to use it for public shared renderings and presentations by adding my name as its owner.
I really hope you like it.
UPDATE: uploaded STEP file