Exciting news ! Kunos team, represented in this case by the KS lead 3d artist Simone Trevisiol, just released a first video presenting the basic functionality of their inhouse editor/exporter, the tool that will allow you/me/us modders to export own 3d creations. It seems that in the beginning, only track exporting options will be available, although for cars the same editor will be used a little bit later down the road. The main reason (and it makes sense) is that Kunos team wishes to also release a proper documentation when enabling car export, as cars require more that some 3d geometry and a few material/shader settings. The prefered format for impotring the 3d geometry in the editor is FBX2012. So, watever software package you are using curently for creating your models, make sure you have a way of proper exporting it to FBX2012. This will avoid some possible frustrations later . Anyways, things are starting to take shape and lots of "work/fun" hours to look forward to, the signs show ! And, in case you've missed it, check out our BASIC GUIDE for creating/exporting your first track in Assetto Corsa.