Sorry mate. It is meaningless. Doesn't even mean the car has left the USA.
Isbrown, I just phoned Stone and he doesn't know where the cars are. Perhaps more likely (since it strains credulity that the local head wouldn't know where the first cars are) he is not allowed to tell us, and I can understand that. The message appears to be of the kind that would be sent in the USA just before local service centre preparation and delivery, and if this small group of 5 early production Australian Sigs all end up today with such notices and nobody else does, it would suggest to me that the cars have landed. But Stone says they have to launch the service centre first before they go anywhere (maybe 1-2 weeks) and then prepare them (1 week minimum) so we are well into mid-October for delivery in that scenario.
I, and I believe Dborn, have asked for adequate preparation time to sell assets (more than 7 days) to raise the funds so I think that will be the real signal.