general problems of the 2003 BMW 760

Used car purchase. Within 30 days of purchase 760li began to have problems starting. Once started, idle was rough. Jumped between 0 and 1k rpms while in park. While driving car at approx 20-25 mph car engine stalled (*unknown to driver as it is a quiet running engine/occupant cab). Power steering was lost and the driver needed to hard crank the steering wheel in order to pull out of traffic and onto roadside safety. This began to occur repeatedly and unexpectedly on every occasion the car was driven. This car is a deathtrap!! BMW touts it as their flagship vehicle. Since purchasing the car I am not able to drive it and no longer feel safe placing my family in the car. This car should be taken off the road and BMW should be fined for not placing a recall on this vehicle/part. The only reason injury or crash did not occur is due to the quick reaction of myself while driving.