I swear, my switch to BMWs just might be cursed: just went to drive the loaner for the first time in a few days and noticed someone had t-boned it on the driver's side, back door. Thankfully, someone witnessed the whole episode (it was in a parking lot), wrote the plate number of the person who hit me, and left it under the windshield wiper. Hopefully the authorities can get to the bottom of it soon.

No point in trying to lemon it now -- it's way too early in the process. I still have a reasonable amount of confidence they can fix it; lemoning (is that a word?) the car will become an option if there are recurring and/or new engine problems.