Here is a video of my bone stock 2009 Audi A4 driving though a foot of snow. I couldnt believe how easy this was to do. In the beginning of the video it doesnt really look like a foot of snow, but later in the video as the car starts to drift, you will see the ground in the cars tracks and you can tell how deep it is.
http://video.ultimatestreet.com/vide...1-foot-of-snow
Hope you enjoyed it as much as i did...