Thread by @greentheonly

So what did the car actually see?
Well, it turns out at first it looked like an obstacle so it slowed down some, then it decided that nah, there's nothing and lifted it's "foot" off the brakes, huh?

Radar to AP: "there's something! stop! STOP!"
AP to itself: "what's this yelling? I don't really see anything dangerous, keep moving"

BTW see that disengagement before the impact? I did not do it!

Now we wondered what would happen if we remove the foil? Well, pretty much the same thing only this time autopilot actually sped up before impact after initially slowing down some and did not disengage until I stomped on the brakes.

Surprisingly car sees the box even without foil. Other than that - no differences pretty much
(fun fact, box with foil shows as pedestrian on IC, but without foil shows as car - when still, sorry did not think to take pictures)

Now if we remember the system is an ADAS - we clearly see it did it's job - there was ample warning, lots of beeping, some braking, clearly enough to even get somewhat inattentive driver attention.
But as an autonomous system? Well, there's not even a hint of that as you can see.

Also I was somewhat shocked to see that the system does indeed have a tendency to disengage fractions of seconds before imminent impact (as I already observed in real world driving) so the impact, once happens, is suddenly not on AP anymore.

We also see no evasive maneuvering of any kind was attempted (not that I expected any, but many seem to think it's something AP does?)

Moral here is - take over early at the slightest hint of trouble, don't wait for AP to do a sensible thing or you might run out of time

Ok, that was the end of it, feel free to read and watch and comment now and sorry for the initial early posting mishap.

err, correction, accidentally used tinfoil obox for augmented view. here's the correct footage:

and btw by "car sees the box without foil" I really mean "radar sees the box without foil" (that big orange circle)