I wonder if any one else has experienced a somewhat loud "clunking" sound when applying their brakes in driveway, or parking lot type situations? I first noticed this with my window down while in a bank drive thru. Couldn't believe it was me. Took it to my dealer, and they told me they compared it to other 3 series they had in stock, and they all seemed to have this sound in light braking situations. It sounds to me like a caliper that sticks initially, and breaks loose after a second with a mechanical clunk.