To anyone who has  one of these.  I got side stepped in my decoder tester build when I wanted to run mine. 

Beware the rear light. It is incandescent and generates enought heat to damage the freight car body. Mine was  damaged. Concor is sending a replacement. in the mean time I replaced the incandescent with a warm white LED.  The Pierce-Arrow  car body has a, confirmed,  warm white LED so no damage in view.

Mine started acting erratic, start, stop, decoder would reset. Turns out one of the pickup wires came loose. Bad soldering. I had to take the drive apart, completely,   to get at the trucks and re-do the soldering.

They also use those plastic caps to hold the wires to the light board, these fall off or become loose if tyou so much as breath on them. Soldered mine on.

Had a few other issues with it so be aware.  I still like it with it's Digitrax SDN144 and all, but needs TLC.