KK and M

Where is my car?????
I can honestly say I have no idea where my new BMW is. This is what it looks like:

So, here's the deal:
We had it two weeks, someone hit it while it was parked in front of our house. Not too much damage but still not cool, and we don't know who did it. The next week it goes to the BMW dealer to get some work done that is covered under the warranty. Kevin left it there for the day and never heard back from the dealer. So, he called at the end of the day and the guy was like: "Well we fixed the light in the dashboard, but something happened." Apparently, a "big truck" hit our car while it was sitting in the parking lot at the dealer. This was approximately 30 days ago.

Luckily, the dealer gave us a loaner. It's newer (2007), cooler (because it's newer), and better (it only has 6,000 miles) than the one we bought. So now I'm facing a moral dilemma, should I keep the newer, better, cooler car forever and tell them that I lost it and that they can just keep mine and we'll be even. Or should I just give it back and take back my "new" car when it's finished getting repaired? But, god only knows when the hell that will be.