lack of time to qualify each one individually.
Is there a difference, in that regard, to AP1 then?
My AP1 will engage AP anywhere-ish. On the back roads, with a central white line but no line on the outside, it is usually hopeless - a curb is somewhat less hopeless than a verge, but I haven't got to the point of trusting it even then. But if there is a white line on both sides of the lane I'm OK regardless of road type. I can't imagine that these roads have been "processed" in any way, and another Tesla in the vicinity is a rare sight!, so I assume I'm just driving on sensors, rather than map info. Map info may help with the speed it chooses for a bend, but usually I find it braking late / into the bend (if it is sharp) which suggests no map awareness.
In practice I'm not using AP1 on lesser roads, other than out of curiosity. I get nervous about trusting it with oncoming traffic (i.e. what sort of avoiding action I MIGHT be called upon to take, unexpectedly) ... but in crawling traffic on any road type, and on all dual carriageways, I use AP pretty much all the time ... except when I am in a hurry.
At a 75MPH cruise I can't think of a journey where I haven't accidentally got AP1 disabled by nudging 90MPH, which is very annoying (where is the safety in disabling AP for the rest of the drive? I have never pulled over, and done PARK to reset, so have been more at risk in that sense). If someone is coming up behind me, when I am overtaking, I generally speed up and pull over sooner so as not to hold them up ... 90 comes up very quickly. But I'm getting used to having to jiggle the wheel, or disengage AP (and thus Cruise too
), when I accelerate - but I curse every time that I need to do that ...
When I'm in a hurry then in traffic, where I can sprint between busy stretches, the 90 MPH lockout is so likely, or I will have fiddle about disengaging so often, that I just drive manually. I think that's daft as my view is that with both AP and ME driving I'm i a much safer place than when just one of us is on the job.