@trandoductin, I found a .obj and downloaded it. I found the BMW.obj in the list along with all the jpg's.
I opened Gimp, went to file/Open Object File and nothing happened so I made a default layer, then made a black layer above it. I then opened the plug-in, then selected the bmw.obj then ran the script at default. All together before it crashed it was up to 15 minutes.
First, it went through, finding unique vectors, then finding unique edges, then went into the drawing. It crashed about half way through the drawing mode.
I don't know what I did wrong. Was I supposed to open a layer to make the script work, and what size should it have been. I also ran the script at default. Other than that, I am stuck.