Sorry Barry, I'm not even sure which side of the pond your car was when it went from bronze to red! I would suspect your side, & would start with 1967 and previous Ford colours.
Graham,
Do you have the paint code for the gulf car 1049? I have seen it's factory paper work but I failed to write down the info. And would you have the equivalent paint code for a modern day paint supplier? When I get time to complete my 1/24 model I am planning on trying Ford midnight blue. It is a fairly dark blue metallic. I believe it would be close.
Tony