61653 HTAFC
Veteran Member
Not really a hybrid. They were built by Metro-Cammell who also built the Mk4s, and I think used similar construction techniques in certain areas. They do appear at first glance to be related to the BRE Mk3 family, but aren't- being built by different organisations in different cities.More of a MkIV/MkIII hybrid are they not? MkIV had a lot in common with them I believe, still could you cut panels out of a MkIV structure without affecting it?