I have noticed an intermittent steering wheel “tremor”/vibration that I can see and feel, usually between 50-60 mph, but sometimes higher. I usually notice this on smooth roads. The car tracks fine and no vibration occurs with the brakes. The dealer checked this out, rebalanced the tires twice (the first time they need to make an weight adjustment), and stated that nothing is wrong. They have heard of this concern in the xi version, but they blamed this on the “sensitive steering” and not a problem. Since this is my first BMW, could this be the very sensitive feedback from the road that I am feeling or something else. Thanks, Marc