So far my first MB I named "The Atomic BB". I like that name, and have never considered anything else.
My second MB was a Cadillac, so it was just named it "The Cadillac". It lived up to it's name too. I've had 2 Cadillac cars, and they were both the worst cars I've ever owned. Always in the shop. The MB was just as bad. The motor blew up after 600 miles. After I rebuilt it, it only lasted another 500 miles before it crapped out again. I finally decomissioned it, and turned it back into a riding bicycle, which it seems to like being a lot better.
Now I'm fixing to build a Felt Deep Six. I've kept it in my living room all summer, and have been trying to think of a good name for it besides just calling it "The Felt", but nothing has come to me. I hope I can think of something good. Any ideas?