Well guys, the vibration is not normal. I had one creep up on me in my BMW a few years ago. The vibration started in around 65 and would fade as I passed 70 or so. Drove me NUTZ trying to figure out where it came from and got worse with time. Finally, I bit the bullet & bought two new front control arms & two new front wheel bearings (which I replaced once when tracking down the problem) and the problem went away.
The Bimmer is 18 years old & drives like new. My money is on the control arms because in the case of the BMW the inboard joints/bushings were worn. The wheel bearings looked & felt OK, but I replaced them anyway.
Inspect those control arms carefully, if the inner bushings or joints don't look to be in good shape, consider replacing them.
