The Evolution Series is GE's latest locomotive platform. InterMountain Railway is faithfully reproducing the prototype in HO scale. This is a NEW MODEL. Each locomotive will be factory ready to run on DC or DCC with optional SoundTraxx® Tsunami® Sound. The model features include: prototype specific details to match the cab, the trucks, the rear lights, etc., particular to each road name; operating number board lights and ditchlights; etched metal details; wire grab irons; laser sharp paint and lettering; and Kadee® couplers. Non-Sound models will have a factory installed DCC decoder capable of operating on analog DC or DCC. Stock Number / Locomotive Number -01 5207 -02 5223 -03 5364 -04 5398