What we do know is that it started life as a Bristol 401. The seller says his grandfather imported it.
At some point the body was removed from the original Bristol frame and placed on some sort of Chrysler frame. It also received a Chrysler engine. (The original engine in this would have been a BMW "inspired" I-6.) He says the engine is a V6, which would make it a fairly modern engine. (I'm not a Chrysler engine expert, but I don't think they started making a V6 until the early 1990s. The famous slant six - an inline engine - being their only 6 for many years.) It also has a Chrysler automatic transmission and steering column / wheel.
The seller no longer has the original frame and engine. At this point, sadly, you're sort of forced to go ahead and finish this project. The seller claims to have most of the trim and and other miscellaneous parts.
This will not be an easy project to complete and when you're done you'll have, for lack of a better word, a bastard. But, on the plus side, you'll have a Bristol (or at least a Bristol body and interior) that you could drive everyday.
Seeing a 6 cylinder Chrysler powered Bristol 401 driving down the road is better than never seeing one at all, I guess.
Located in "St George, USA" (Utah? Florida? Another St. George?), click here to see the eBay listing.