Have a 2011 X5 35d and absolutely love it. Having said that, the 2011 VW Touareg Diesel is seriously impressive. Test drove one with a friend and the interior room is absolutely nuts. I think the look, though conservative, is very appealing and probably more timeless than the e70 design. Couple with the fact that up here I could have a decked out Touareg for about $65k CDN and my X5 cost me $87K, I wouldn't hesitate. A lot would have to go wrong with the Touareg to eat into $22K in cost savings. For that money, but extended warranty to boot.

My $0.02.