this thread really intrigued me, so I looked into it. It seems that the Durango chassid was an electric 4wd version of the t3. Which looked sweet. Apperently the kit cost something like 1200 bones!! Ouch, but the rumor on the web page was that Associated was buying the rights from the manufactorer "Gerd". I think it said it was German made. That was just a brief overview thoug. I didn't read it in detail.
Ice cream man's link