Interesting.  Given the size, it doesn't look larger than an X5, so is 
it basically a more sporty X5?
Guess Porsche was alone in this category, but always thought of it 
as a small, niche market.
I keep seeing X5s on the road with wicked fat tires front and rear, so 
there must be a 'sport' package available for the X5, and it looks more 
vicious than this X6.