This is known as "Cerbyd Eisteddfod/The Eisteddfod Coach" because it was finished in time for the National Eisteddfod, held in Porthmadog in 1987. It's based on the chassis of two Hudson bogie wagons, many of which also run on the railway. The body was designed to be similar in style to the original Welsh Highland Buffet Car, which is also preserved at the WHR(P). The coach is a regular sight on passenger trains on the railway at the moment, and has also been used as a restaurant carriage on "wine and dine" trains.
For some years, the coach had tables fitted, these often being used for wine and dine trains. When these were removed, the toplight panels were replaced with glass.
In the last few years, extra features have been added to this coach to re-create the flavour of the old Welsh Highland Railway. These include window bars, enamel plaques indicating "third class" and lettering on the side in the style of the old Welsh Highland Railway.