Mike 
2008 BMW X5 SUV 4.8i 4dr SUV AWD (4.8L 8cyl 6A)
X5 Beats Cayenne!!!
 Much smoother than the 2006 Cayenne S I had. Definitely more technologically advanced. Owned for about 2 weeks now, and waiting to break-in to about 1k miles, then I'll drive more like a speed demon. 