That's marketing for you I guess. (Don't get me wrong, would get a Tesla if money were no object)
Auto braking and automatic speed adjustment cruise control, but no lanekeeping. It does have an alert when you leave a lane without signaling, but that's not the same as actually keeping you in the lane.
http://media.subaru.com/newsrelease.do?id=940&mid=141&allIma...
For one Eye-Sight turns off if you come to a complete stop and won't re-engage until you get over a threshold(I believe 18mph). It has a pretty limited HUD to communicate what the system is seeing.
In comparison the Tesla will do full rush-hour traffic flawlessly and does a much better job of communicating what it's seeing in the vicinity of the car. It also bounces the radar under the car ahead of you so it has the ability to see heavy braking conditions much sooner.
C&D did a pretty good comparison recently[1], it didn't include the A8/S8 but most of the other competitors but Tesla was far and away the better system.
[1] http://www.caranddriver.com/features/semi-autonomous-cars-co...
Yes the eyesight disengages if you're stopped for more than about 2 seconds (will acknowledge it's annoying), but you can restart it at the touch of a button even from a stand still. This might be a recent change.
That car and driver review doesn't fully explain the features.
I'm sure the Tesla is a bit nicer and more autopilotey, but it will cost you 70-80k MORE out the door which is the point. Eyesight gets you 80-90% there. The tech is otherwise similar features wise.
If anything what you could argue is that the Tesla can get you on the freeway on its own which is pretty cool. Can it do that?
I was just commenting since we've owned both systems, if you haven't had a chance to give Tesla's a spin they are happy to do free test-drives, on paper they look similar but in execution I found Tesla's to be miles ahead(and constantly improving).
That extra 60k also gets you some really acceptable 0-60 times :).
You'd be surprised, during most drives home I only have to hit it 2-3 times.
Listen, I'm not trying to argue that my Forester is nicer than your Tesla. By no means is that the case.
My comment was more to point out that the tech is a lot more common than people think.
I feel like Tesla pulled an Apple on this.
The cruise control in Teslas cannot (yet?) drive you from point A to point B or even keep you driving in one direction forever without you holding the steering wheel occasionally or even hitting other objects. It can (just like cruise control in other cars) warn you if you are about to do something stupid (e.g. leaving the lane, about to hit an object etc.).
This is like people using foglights in cities at night to see better. You can use it for that, but it isn't made for that purpose. A light meant for FOG or other scenarios where the car itself is hard to see and not for you to light up everything in front of you (as it is quite bright if not used in fog).
Because of this, an aircraft under autopilot (especially one ascending and descending on its own) doesn't need to worry about hitting things. There is usually a distance of 3-5 miles¹ between the aircraft and other hard objects.
I would say calling the Tesla system an Autopilot is vastly understating its abilities.
¹ http://aviation.stackexchange.com/questions/2806/how-much-is...
Seems like an engineering achievement to me.
If you read the biography, there have been times when an engineer has said "I can't meet these requirements," and he said "Ok, I'll do your job AND my job, and I'll get it done." And he did.
I think anyone believing he's not an extremely talented engineer has not read much about him.