mth-4-6-6-4-challenger-locomotivehttps://www.trains.com/vid/toytrains/reviews/mth-4-6-6-4-challenger-locomotive/MTH 4 6 6 4 Challenger locomotive | Classic Toy Trains MagazineA video of this RailKing locomotivehttps://www.trains.com/wp-content/uploads/2015/01/CTT_mth_challenger_4664_engine.jpgInStockUSD1.001.00reviewstoytrainsvideoVID2022-11-072015-01-05132729