Can anyone comment on E70 vs. E53 in snow?

[Pex5]

I had an 04' X5 3.0 and I used snows on the OEM rims (it was LCI with xdrive). The DSC on that model was designed to allow some sliding before it kicked in. I read in BMW literature that unlike a rear drive BMW sedan where the DSC takes action immediately when traction is lost in a corner, the Xdrive models allow the 4 wheel drive system a shot to correct the situation and restore traction, and if that fails only then does the DSC kick in with the individual wheel braking etc...

Bottom line was that the old X5 was not as goof proof in a corner in the snow as my rear drive 740/325/550 were (although they'd get stuck starting from a stop light going downhill!). The stability control was noticeably slower to act (as you head for the trees).

Well, I just got my wife an 09' E70 4.8 sport. Great car so far. I'm going to get 18 inch wheels with 255/55 snows for next season.

So, is the new E70 more confidence inspiring in the snow than an E53? Its a lot heavier than my 6 cyl. was. I'm sure there have been changes to the xdrive system and the flexray network on the E70 allows for superfast data transfer to the DSC. Does anyone have experience with both X5s in the snow?

Thanks,
DRP