I have always liked the styling of the X6, it has gotten a very large mix of opinions people either love the car or hate the car. Peronsally I think its a well designed SUV with a low center of gravity. I like how it looks, even though I think it needs a different set of rims, I heard the V8 version is very fast, and now that they came up with the X6 M thats just ridiculous.
Now they have a boosted the 4.4 Liter V8 to a 555 bhp with 500 lb-ft of torque. Its probably ridiculously fast and handles very well for an SUV, it seems that way from the X6 M track video. Whoever was driving that car was really pushing it.
Link: Autoblog