Had a 03, 3.0 and loved it. Just bought a 4.4.Sport. Wow what a difference. BMW took out all the kinks from the old model. Real quiet inside, solid ride, agile, great acceleration. Get the sport package. Seats are more comfy. I drive this truck in n.y.c. Handles the roads unbeliveable. Fixed the annoying hatch rattle and now easy to remove rear cover. Expensive, but you get what you pay for. Gas mileage sucks. But what is perfect in life? If money is an issue you don't deserve to drive this truck, sorry...
Performance and handling, little wind noise, Bluetooth phone connection.
Need to implement satellite radio or iPod connection not an option for the X5 with navigation. Whaats..up?