Engine Rattling And Whining Sounds problems of the 2009 Mini JCW

Engine makes a loud rattling noise like it has no oil pressure, not just on startup but for as long as a few blocks of driving. It has done this 6 times in the first 2,000 miles of ownership. I am concerned that severe internal damage is being done to the engine if I continue to dive it this way. Dealer says they are aware of problem but have no fix from mfr, or do not have a fix that actually solves the problem.

A loud rattling noise is heard and felt when engine is first started and lasts until the engine starts to warm up depending on how quickly the engine begins to warm up. In my experience, several minutes of rattling. This does not happen all of the time. I've notified the dealership (inskip Mini in warwick, ri) multiple times and the service manager (jeff s) said Mini is aware of the complaint and there are several different repairs for this anomaly,but will not effect repairs unless the rattle is heard in the their shop or I can provide audible proof. Since this happens so infrequently, am I supposed to keep an audio recorder or camcorders in my car, so I can jump out of my car and record the rattle? that is unacceptable! the dealer needs to take care of this problem. I've experienced this rattling condition at least 8 times already.