In an automobile, communications to and from the automobile are in the
form of messages. Such messages are referred to as "electronic car-mail"
or "C-mail" messages as each message has a destination or origination
address which includes an identifier, e.g., a vehicle identification
number (VIN), identifying the automobile. The messages may be delivered
to the automobile from a remote server through a communications network,
e.g., the Internet. One such message may contain a recall notice to the
automobile. Another message may contain just-in-time map information for
navigation, depending on the current location of the automobile. Yet
another message may contain advertising information concerning selected
entities, e.g., restaurants, gas stations, department stores, etc., also
depending on the current location of the automobile. The messages
transmitted from the automobile to the remote server may contain, e.g.,
GPS information identifying the location of the automobile, dynamic data
furnished by sensors in the automobile for analysis, an odometer reading
and a speedometer reading for records, etc.