-Sharp Painting and Lettering
-Road Numbers Printed Per Prototype Photos
-Powerful Drive
-Intricate Details
-Micro-Trains Couplers

Tested: These engines are low-geared and run slowly but strongly and surely. One steam locomotive will pull as many cars upgrade as the standard diesel engine, and more than the smaller diesels. A  higher voltage (14-16 volt  power controller will help increase speed and power.

If you note that one of four drive wheel shafts has a rectangular connection and the other one has a triangular connection, that is deliberate. In the prototype, that drive wheel would be moving, as would the connection, which would stretch and extend - hence the triangular piece - and when at rest it would be compacted and rectangular. It was designed by the engineers to give the illusion of movement when the locomotive is moving along the track.  There will be a second run; it will have this piece also.