I know after they went broke (a year after the Pantera) it was already switched into many hands as OPS was one of the owners. The later develloped Rallygame had many parts of the old onroad cars as I also was told that Mantua model was the place to find the old BMT parts.
I also believe the current BMT designers have nothing to do with the old cars but as far I could see it is only a slight re-designed Capricorn and some own devellopment is going on regarding the Facebook page of Ielasi Tuned.