The most famous of all the GS series, no VISION edition of these locomotives would be complete without the GS-4! We've focused our attention on one specific locomotive in this lineup - 4449 in some of her many appearances in a long and amazing second career. Of course the classic Southern Pacific Daylight liveries are represented as well as the American Freedom Train and BNSF specials. Because the whistle was moved forward and next to the smoke stack, the whistlesteam feature would be less noticeable on these models. To provide a more interesting effect, we've added a dynamo smoke feature instead - to all three of theGS-4's dynamos! You'll also get all of the other great VISION features on this, our finest GS-4 ever.