The latest version of Vectorworks is one of the few AEC systems based on a real solid modeling kernel. The kernel selected by Nemetschek is Parasolid, and the technical person with the knowledge and the vision to push the product in this direction is the new CTO Biplab Sarkar.
I recently interviewed Biplab Sarkar to learn how Nemetschek managed this important transition and the reasons for this specific choice. The interview is a bit technical, but IMHO extremely interesting.
If you are interested, the complete interview is available on the Novedge blog.