[QUOTE=Howard Wood;61002]
Quote Originally Posted by Steve Holmes View Post
Thanks to Paul McCarthy for sharing this great magazine article from 1970, showing how the Broadspeed Escorts were tubbed, as per Howard's description. 1970 was the year the BTCC switched from Group 5 to Group 2 rules, with Group 2 allowing more freedom in many areas.]

Steve, what a wonderful resource The Roaring Season is, the very same car as I was recently shown by one of the original constructors! Period articles and information such as this are a vital piece of the "evidence building" which is part of the research needed to correctly build to original specs. I guess you either love or hate that part of the process, I take my hat off to Pauls McC and B plus John McKecknie and everyone else who researches properly and is generous enough to share the knowledge.
Hi Howard, thank you for that, I really appreciate it.

Interestingly enough, I decided to follow up on the idea of period illegalities being allowed in modern day historic racing under FIA Appendix K rules. I asked a couple of colleagues in Europe about this, and they confirmed that in many cases illegal modifications done in period are now accepted as legal under Appendix K. I thought this was quite interesting. Essentially, the emphasis is on total period correctness, legal or not. Of course, it has to be proven and with photo evidence etc, so not necessarily easy to prove as usually these things weren't photographed.

However, I sent them the 1970 Autosport magazine article posted above and pointed out the tubbed rear inner fenders on the Broadspeed Escorts. They said that many of the cars racing in the BTCC under Group 2 rules (from 1970) were often more modified than those racing in Europe under the same rules, and that the FIA won't always accept illegalities as performed on BTCC cars. I guess the rules were interpreted differently, or enforced differently. While the original Broadspeed cars likely wouldn't have an issue getting an HTP, in their opinion anyone building a Group 2 Escort and using the Autosport article as reference to push through tubbing on a new build might get knocked back.