Hello Florian,
Thank for the DWG tips, I already use it, but as you know, this format is the worst for 3 D models and texturing.
Capture Allready does a webcast around 3D formats.
Yes vector work is powerfull, oposite to of Autocad is for me the champion of lagging your PC with 3D models,even if you system is very large and powerfull.
It's allready exist DWG export in Capture, why not Sketchup too ?