My wife's 2005 X5 4.1 is really disappointing in the snow. I got stuck right in front of my house, on the flat, in a bunch of snow that should not have halted it.
Our Honda CRV has no problem in the same spot and our 1985 front wheel drive Caddy is better on the snow.
One would think a German car would be great in the snow, but this is not the case.