Interesting sub-conversation.
I must add that had the radar improved between AP1 and AP2 I would find it likely that
a) Tesla would have told us about it, they did state all other improvements including improvements to ultrasonic and rear camera (though of course to be exact the optics of latter were upgraded earlier)
b) Tesla made the point cloud claim already on AP1 suggesting capabilities of AP1 radar are same across the board
c) Efforts in b) so late in the game suggest they likely were applicable to both AP1 and AP2 hardware
All in all, the reasonable conclusion is that likely both
@Bladerskb and
@stopcrazypp have both valid and invalid points. I would say stopcrazypp is likely reaching when assuming AP2 features an upgraded radar (while possible nothing points to it, so I am not sure it should be used as an argument yet) and Bladerskb is too dismissive of the point cloud potential of Tesla's radar in general.
As for the point about AP2 braking because of overhead signs, already Elon said AP1 could get false positives from them (hence it did not break for the fatal crash) so IMO that does not point towards a new radar either.
That said, I guess all agree the point cloud of radar is nowhere near the quality of Lidar. I believe even Elon described it as coarse. Elon also said they used temporal smoothing to achieve it, so time definitely has an element.
A fair summary?