..a little off topic but...
When I picked up my car I asked the sales person if I should keep it under a certain speed for the first couple of months.
Answer: "All BMW engines are broken in at the factory prior to installation, but its a good idea to keep it under 170 for a few days". Don't know if this is 100% true but I got a laugh out of it. I drove it home at a cautious 168.