Same here. I have the Pirelli Scorps on OEM 18" wheels, and the thing is unstoppable. Last week played in foot deep snow on the unplowed section of a large shopping mall, and never got hung up at all, including straddling the plowed berm of 20" +. The ABS gives up long before the tires on my car. I'm convinced it's the driver!

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Sageriders
2011 328, Water [blue], Saddle
2006 X5 4.4i, Sterling Grey/Truffle, Premium, Sport, Cold, Rear, Adj. Ride Ht.
2005 X5 3.0, Sterling Grey/Black, Sport(Totalled!)
2002 330i, Grey-Green Met/Truffle Br. [Sold]