I agree with Bill - that diamond plate is there because the shell was heavily damaged at some point. There's no other reason to put it there -- it adds weight, it covers a nice expensive window, and would be a fair amount of work.
I wonder if, as part of the salvage title -- or "rebuilt" title -- they had to name it differently, or could name it differently, and that's how that new VIN sticker got there.
According to this VIN database, which was just the first one I came to, there's some unusual history behind it:
https://www.clearvin.com/en/payment/...0bf1041074103/
And according to this VIN decoder by the NHTSA, the digit that specifies the manufacturer seems to perhaps be "off":
https://vpic.nhtsa.dot.gov/decoder/Decoder
And even if you just Google the VIN, you'll get some hits.
Dig deep!
Dave