If it’s VW based and the VW vin was used to title the reconstructed vehicle, the VIN is stamped into the top of the chassis center tunnel, by the shift rod access panel. It’ll be under your seat in eh TD replica.
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)