I'm not sure there is many German Whitewashed AFVs in the western front ; there is not so mutch photos with German AFVs winter camo, It seems German dont used often winter camouflage in the Ardennes offensive. Pat.
Ps: I've seen many photos with American whitewashed and snowy vehicles, armors, but few with german, only some snowy destroyed panthers and Koenigtigers, whereas you can see german AFVs with foliage camo.