2004 Lionel O Gauge Polar Express Train Set 6-31960 Diecast Locomotive. Set includes a black locomotive, 3-passenger cars, track, transformer and a coal car. The power type is AC, and the control system is analog. Don’t know if the smoke works. Don’t have any’smoke liquid’ to go in stack. So, I’m gonna say it doesn’t work. If you can get it to work- great. Looked in box and the’Santa bell’ was no where to be found. Train whistle works awesome. On the transformer there’s 3 buttons. 1-whistle, 2-smoke 3- Santas bell. Locomotive works from very fast to slow, works with the lever on transformer. Extra lights, 4 figures, manual. Please look at all my photos as they are part of my description. Train set is in like new condition (almost looks new). You will receive all train pieces that are show in my photos. As you can see, I set it up to show everything that’s there and it works flawlessly. This makes only the 2nd time set up. Box is worn in some places because of storage. But all the boxes that hold the cars look new. The Box is Really Heavy because of the transformer, metal trains and track. This Lionel O Gauge Polar Express Train Set 6-31960 Diecast Locomotive Steam is a must-have for any train enthusiast. The set includes a black locomotive, 3-passenger cars, track, and a coal car. The set is suitable for ages 8 and up, and it is a vintage item manufactured in 2004. The train set features a light function, limited edition advertising specimen, and painted details. It is a perfect addition to any collection, and the corporate roadname is Polar Express. The theme of the set is Christmas, and it is a starter set type. The brand is Lionel, and the set includes a variety of aspects such as power type, color, set includes, and more.