It was recently revealed that instead of CanBus they use Ethernet
If you're referring to the thread on teslamotorsclub.com[1], they are not using Ethernet for any sort of communication aside from infotainment and there is definitely a CAN bus[2].
There's been speculation that UDP broadcasts from the CAN bus are carried over that network as well, but it's almost certainly used for displaying information and informing various non-essential systems.
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There's been speculation that UDP broadcasts from the CAN bus are carried over that network as well, but it's almost certainly used for displaying information and informing various non-essential systems.
[1]: http://www.teslamotorsclub.com/showthread.php/28185-Successf...
[2]: https://news.ycombinator.com/item?id=7535589