 I took delivery of my X5 4.4L V8 in January 2012. The performance and body design of this vehicle are without a doubt awesome. It's interior layout and idrive system are equally impressive. Nonetheless, I am disappointed with the rear entertainment system. My DVD player will activate when initially placing a DVD in the player (when the vehicle is on), However it will not resume play using the DVD play button. Additionally, the DVD player volume control button does not work. I was informed by one of the local BMW service departments that the problem is a software issue and that BMW is seeking a solution. 