Blimey we seem to be going round in circles here! thanks for everyone's input though, just found colour charts on website, according to that Rhine Gold and Brazil were available as Frank has said 73 through 75 so this does fit, although like Gary I also thought this was a late mk1 colour around N 75, when the cloth seats and tinted glass came in,
I don't believe its re bodied Frank, it has original early front and rear valances and lots of other bits that if you went that far you would update, only my opinion
I've also heard of cars being ordered through the factory employee scheme where a lesser model was ordered but when it went through it was changed to suit the taste of the employee! usually to a higher spec than the order sheet! so its not surprising some cars have different bits fitted that are not standard! wonder if this goes as far as colour? Why not? Iknow a lot of pushbikes and other stuff came out of there in BLMC colours!!
As said thanks for all your input
Andy