Hi Nikola,

> I'm planning to invest in it,and combine it with moi3d.Is it good for building the
> carbodies and other vehicular stuff?

I don't really know about that - ViaCAD can be a good tool to have along with MoI mainly for doing filleting and 2D drawing generation. I'm not entirely sure but I don't think it will help a whole lot for freeform type surface modeling like you will be doing with car body stuff.

There is a book about car modeling using Rhino, that may be useful for you:
http://v5.rhino3d.com/profiles/blogs/3d-car-modeling-with-rhino

- Michael