Of the national rental car companies, I think Budget has the most "prestige" cars, but I believe the selection varies by station (e.g., very strong in LA).

[Dagnabbbit - I hate it when that happens - NWCOTW slipped his post in while I was writing ]

The BMW dealers themselves in the area might know where to rent one, or they may be able to handle it internally themselves.

Good luck!
Greg

[This message has been edited by greg99 (edited 06-24-2000).]