Hello Mate
I would speak directly to Ford as well.
I would doubt whether the Escort Cossie was ever crash tested, being a limited production they probably didn't bother.
I wouldn't think it would do too good either, as it was designed and built as a rally car, it is a very stiff shell, not to good for crash testing. I've spent a lot of time in my engine bay and I haven't spotted a crumple zone yet
Cheers
Paul