I think, Beelzibub, you might have gotten confused "powersteering" with this "activesteering" by BMW.
The active steering has to do with the steering ratio to speed,
I don't know the exact tech terms, but to explain in words,
If the car is slow or parking, it takes just about a half turn or so to get the steering from left to right lock. In a normal car, it would take maybe 2 turns.
At higher speeds...the ratio changes.
The first time I drove the new 545i, I had a shocking jab to my arm when I was parking. You know how you turn on the wheel forcefully and quickly when doing a 3 point turn...the steering just locked in less than a turn and I wasn't expecting that! Felt like I almost broke the steering wheel! But it is a nice feature to have and I believe once you adapt to it, you'd not enjoy a car without it.