[n_blom]

It's not likely that this "autopilot mode" is close to the state of the art. See for example what kind of technique Audi has put into their prototype A7:

http://www.motorauthority.com/news/1029470_autonomous-audi-a...

I can't believe Tesla has all these sensor already build in.

Plus Audi, Mercedes, etc. have all enormous experience in vehicle dynamics, which is critical in handeling automatic reactions like full braking and sudden fast steering at higher speeds.

The critical part is what does so car do if it requests driver interaction but the driver does not response. Brake? On a highway?

Autopilot will come, but not in the three month. That's just hilarious.

[mikeash]

You're right that "autopilot" isn't the state of the art anymore. It's just radar cruise control and automatic lane keeping. The radar cruise control feature is already available in the Model S, and has been for a couple of months. Lane keeping is the missing piece. You can buy cars right now with automatic lane keeping, and Tesla has demoed it extensively in their cars, so there's no real doubt about it coming soon to Tesla.

Three months is "hilarious" for a feature that's already been commercialized by others and has been shown to be nearly done in Tesla's implementation? How do you figure?