When gathering references for automotive paints I’ve often seen real-world paint samples using widgets called speed shapes. I created one of these widgets in 3ds Max to help me dial in my paint & powder coating material settings. I thought I’d share this object in case anyone else out there may find it helpful.
Here’s a LINK to the file. It contains the object in .fbx, .obj, and .max (2012) formats. It isn’t a complete scene ready for rendering, it’s just the object itself. I’ve also included some information in PDF format with size/scale values for some of the various speed shape objects that are available.