MMMhhh... I tried too but... are you sure ANY object ? I tried to model a plane in Moi and then export (tried all the options).

Imported in TM 2.195 and then tried to obtain something fabolous as your image. NOPE.

So I retried with a solid (capped loft etc) and other (from Rhino too). The result is weird.

I love car modeling so if I could cut a surface, export/import in topmod, i could obtain a fantastic preformed grill to put on my cars holes