here, in Belgium, the Eurofima coaches are called " I6 " , with two different classes : first class and second class. and, along their live, they have three different color : the first was called C1 ( in orange with small white band ), the second was called Memling ( made for the EC 34/35 " Memling " Oostende-Dortmund, in dark grey, red and blue ) and the third is New Look ( in white, red and blue ). There were other Eurofima coaches with the Belgian, from France ( and Switzerland too ). The French coaches went to Paris with the Paris-Brussel-Amsterdam, and they were much Eurofima French coaches : 1st class, 2nd class, 1st and 2nd class, 2nd class with " Bar " and 2nd with luggage.
For namy examples of formations with Eurofima coaches, go here, and have a look for the train : 90/91/96/97
And for you Roco 63670, the blue engine have a grey roof, never a black. The black roof were with the green engine