[Mr. Magic]

I think I know the very slightly felt high freq. vibration you are talking about - it's way too high a frequency for wheel balance or alignment - it's like a "noise" in the feeling on the steering. To me, it almost feels like a bearing surface is rubbing without good lubrication and just needs to be "worn in" a bit. It comes and goes. However, I also think it could be described as a very subtle electric motor "noise" from something like eddy currents or similar. I have heard such vibration is quite common in Prius's (electronic steering).

I've test driven 4 or 5 F10's and did notice it previously in some, but thought simply the car was too new and needed some "wearing in". But I wonder more now since I've noticed it on F10 I took delivery last week.

I too would be curious to hear if others notice that feeling.