The model is almost entirely scratchbuilt in resin, plasticard and etched brass. The centre vehicle, Pilot, is made from resin and is based on heavily modified Hornby APT vehicles. It has etched brass window inserts to portray the panelled in windows of the prototype. The two outer vehicles, PC3 & PC4, are scratchbuilt in plasticard. The bogies are in resin and plasticard with etched brass overlays.