Not just hamsters, but buff hamsters high on meth!
I hear you - at that cost, you want it to be perfect.
I am hoping this is just some break-in thing.
Just thought of one thing to set your mind at ease - sign into the BMW connected site and choose to request your vehicle data - it takes about 24-48 hours, you'll get a full report with error codes etc - that you can then lookup to see (and take to dealership - they get some wicked detailed info when they scan your key in their reader)