Hi Fuad,
In response to your question, my friend had I Mob installed, came as an option with the car from C&C. I was told that when the car was discovered, baterries were disconnected and some electronics ripped out...but they could still track the car....not bad. I called I Mob sometime ago, and was informed that a few brand new BMW owners have installed it over the last 6 months, no complaints so far. I am kinda worried about the effect on warranty though....