Classic Roadsters provided a serial number plate, which the manual said should be riveted to the front of the “firewall” on the driver’s side. Of course, it’s only going to be there if the builder of the car chose to rivet it in.
I do not know what the BCW or any other manufcturers did, if anything.
Former Owner of a 1981 Classic Roadsters Ltd. Duchess (VW)
2005 Intermeccanica Roadster
If you own a TDr and are not in the Registry, please go to https://tdreplica.com/forums/topic/mg-td-replica-registry/ and register (you need to copy and paste the link)