I certainly can let the listserve know how the query comes out.  Without an official count, it seems that most of the responding town don't provide a separate vehicle for the commute.
In a message dated 9/28/2010 11:53:29 A.M. Eastern Daylight Time, [log in to unmask] writes:
Great question Marianne.  Would you be able to tabulate the responses and put that out there for all to see.
----- Original Message -----
Sent: Monday, September 27, 2010 2:49 PM
Subject: Cars for commute

Questions for folks out there:  does you town provide a town owned vehicle and town gas for any of your department heads to commute back and forth to work?
I need this information for a selectboard meeting tomorrow night.
Thanks ahead of time,
Marianne in Windsor