The model is actually fairly heavy with a headlight and interior lighting, leading me to believe that if I had an outdoor O scale layout, it could move snow. The front coupler is removable with a plate to cover up the hole in the ploughface. The add on details are impressive for what it is, with a chimney, handrails, ballast or fuel tank, snow wings, brake wheel, stairs and lots of other neat things. There's diecast, sprung trucks and moveable parts too!
If I build a winter themed layout, this guy is definitely going to be a staple.