Thanks for the links, those were helpful.
The .Car files have the textures embedded into the scene file, so,.. unlike Daz/Poser files, they’re not separate image files, and that’s what makes those scene files so large.
The scene has an engine model with animated pistons,. this would only work in Carrara, as it uses the Oscillate tweener type, which neither DS or Poser has.
All the shaders would need to be exported and rebuilt in any other program.
There doesn’t seem to be any building Walls, or lighting, ..as the promo images show, ..(unless I’m missing something).
There are four scene files, which together contain the elements which make the main Engine model,. stairs section and Floor section.
The models do not look like they were built in Carrara, and contain some unusual geometry (open areas) where sections have been deleted / removed.
This may produce some problems in other software, if you were importing it.
Overall, the scene files will only open and work as intended in Carrara.
While it may be possible to export the objects from Carrara and open them in another application, it would be a lot of work to reposition the objects, and rebuild the shaders.
If you want to use, and build your own scenes like this, then perhaps Carrara is something you should look at.
If you want to try to export the models to another application, then you’ll need Carrara to load the scene files.
You can download a (fully functioning) 30 day Trial/Demo of Carrara 8 Pro, at : www.downloads.com
Hope it helps