[AYBABTME]

To me, those names come in line with:

   - Just Read the Instructions
   - Of Course I Still Love You

...and other silly, whimsically chosen names in the tradition of Culture spaceships (from the series by Iain Banks). Perhaps they're naming their special modes in a slightly similar vein?

[astrange]

Tesla's silly naming is a little more insidious than that. They started out naming their cars S E and X, only changing E to 3 to get around a Ford trademark.