Looks good in the snow.  I like the whitewash.

Funny you should mention Panthers froze up...  ran my Panther in snow today and it was just above freezing.  It ran fine on the packed snow in the shade, but out in the sun the snow was just warm enough that the snow stuck to the tracks.  Soon it was an icy mess and the tracks would not turn.

The Sherman seemed to do well in snow, do you have metal tracks and duckbills?