I would like to know which XJR 100 out of #500 I have, anyway to know?

 

contact JDHT Julia is the lady who'll fix you up - it costs £35 odd for a 'Heritage Certificate' and will give details of the car and batch number. I order them for all the Jaguars I've done and owned as I rebuild them (mostly) to the spec on the cert.

By the way anyone who owns a Jag can do this...

Jaguar Heritage. The Jaguar Heritage Trust

I've attempted to compile a register of these cars for the JEC but no response - I'll have another go in a couple of years!

 

I have attempted to find the same info for my car, as well as a list of all VIN numbers for these cars. I checked with Jaguar and was told that they do not have a list of VIN's specifically for the XJR 100 and they do not know if the VIN's are sequential. I have compiled a small list of every one I have seen for sale in the US. I would love to add yours to my list. I recently learned about the Jaguar Heritage Club (thanks to Sean B) and will attempt to get more info regarding my car from them.