Thanks to ongoing production changes and product evolution, not every EMD F unit model looked alike. Take these F3s for example; you'll find a variety of body detail differences between the various roads. In addition, road-specific options like dynamic brakes and steam generators added yet more variety. This year's crop offers some new paint schemes on popular roads from coast to coast. We're also paying tribute to a Lionel original - the New Haven 2242.Locomotives are available as powered AA sets, with both units powered and with smoke and sounds in the lead unit. Additional powered and SuperBass B units are available separately for those who want more power and sound!