Out of the box, one of the first things I noticed was a different road number -3755. This surprised me , since Lionel noted in some detail the significance of number 1361 in their catalog. It turns out that 3755 was 1 of 50 built in 1920. The K4s is sized so as to negotiate 027 curves, so it is probably a bit undersized compared to the prototype. The new tooling shows up especially well in the rivet and piping detail , and the smooth finish.
Spoked drivers look nice, as does the firebox glow .
Hand rails are separately applied on the sides and nose. It does not have directional lighting - however, the headlight looks like the prototype. Overall, a nice appearance that will look good on most layouts . I tested the K4s in conventional mode to get some idea of the pulling capability, running the engine on the HTOS permanent layout. Two traction tires on the rear drivers are used instead of Magne-Traction .