Hi there...
im a friend of zwecklos...i want to give more information on the model:
-the model has a entskin1 with a diffuse map and in the alpha channel an opacity map.
-one mtlskin with a specular map (not grayscale- only an alphamap to define metal parts)
-and another mtlskin with the reflection map for metalparts (cubemap)
-on the UV-Map the glass parts share the same UV-Space... (is that maybe the problem?)
-the door is animated... since u only can see the back door handle through the not animated window-glas could that be the problem?
i hope this helps a little bit
Cheers
Sinnlos