Question -- the Model S has wireless access, presumably like a built in cellular phone. Is there a subscription cost for the service? If you don't have that subscription, what functions would no longer work?
There is no cost at the current time. Slacker, navigation, voice commands, the app, just to list a few wouldnt work.
From the Feb 19, 2014 letter to shareholders: "To further enhance the driver experience, new Model S customers will now receive free data connectivity and Internet radio for four years. As an added benefit to our existing Model S customers, the free four year period starts on January 1, 2014. To be fair to all, in rare cases a customer may be charged for extreme data use." http://files.shareholder.com/downloads/ABEA-4CW8X0/3227824183x0x727013/9885dd26-2e82-4052-b171-3685fd8150b3/Q4'13%20Shareholder%20Letter.pdf