Hi Steve, I just picked up a 1975 Centaur. My questions have to do with, first the title. It is listed as a Centaur 2, how does that differ from a centaur? Second, It was built in Oct of 1974, then in July of 1975 it had modifications made to it at the Rupp factory, there is a sticker on the side stating that. I am assuming it was to add a roll bar, different rear bumper, dual exhaust and perhaps a custom paint job.I have not been able to find any others like it. The person I purchased it from was the second owner and he thought it was a Rupp display model as it was sold directly to the customer from the Rupp factory, I have a copy of the original title. However I cannot verify that it was a display. It was sold in Aug of 1975. I would be happy to add a couple of pictures if this would help. Thanks for the help.