ORIGINAL: Druss
First, you can't drive any RC's on loose powder snow except for tracked ones like a snowmobile or kyosho blizzard. Doesn't matter how big it is or what type of tires you use.
Yes you can,
You have to go slow when its real deep and soft, watch your throttle control or it will just dig in.
Some times you have to drive back and forth to pack the snow in some area's, before I found this out I just got stuck all the time when it was deep and soft, last year I could drive in any conditions we had.
Here's a link to my video
http://www.rcuvideos.com/video/Clodbuster-In-Snow-2