This is my first BMW. I just broke the 1k break-in period. If you expected a race car-like feel for X5, you will be disappointed. The V6 3.0si is clearly not a M3. Maybe the 4.8 will be better. I picked 3.0 for the slightly better gas mileage. Overall, this is an excellent SUV. Drives better than my Mercedes E320. The transmission picks up swiftly and smoothly. Great brakes. The new space gray color matches well with the style. I don't have the active steering so my wife complains about the heavy steering in parking lots. The worst thing is battery. Since they loaded so many things on the car which consume power, the battery wouldn't last long if you don't drive it for a while.
In addition to what said, blue tooth works very well. Love iDrive. Audio sounds perfect. Very quiet on the road.
Longer battery life. It is ridiculous that the car requires being plugged to a charger (a special order too!) if you plan to take a two week vacation.