Apparently the blue car is like Peter Pan. You either believe and it appears or you've lost the ability to imagine
Tesla specifically mentioned two versions of AP for HW2 which they termed "highways (e.g. divided limited access roads) and "local roads" (everything else). I believe they operated as different programs until 17.17.4 due to their operating behavior differences but, as of now, highway AP differentiates itself in offering auto lane change and allows AS speeds up to 90mph (auto lane change only operable above 31mph for me). I know that Tesla intends for us to use AS HW2 on local roads because they have released software for it and they used to geofence use of AP to limited access highways (actually it was even more restrictive than that but they've eased it back when they declared AP1 parity (17.17.4 first allowed AS on US Route 41, but ironically, not to the Highland Park Tesla location, it stopped at Lake Cook but if you were operating Highway AS, it would continue past the geofence but that ability has stopped once they switched to TomTom for GPS)).
Anyways, the proof is in the programming and the release notes. The Owner's Manual is irrelevant. Even
electrek notes, back in Feb, local roads are AP2 (a big divergence from the AP1 de facto but not de jure local road use (likely limited in some way by ME).
So I don't feel Cadillac offers (to bring this back to topic) anything on AP right now. AP is so much more useful for me (currently almost 95% of my total mileage though I take over all the hard parts like RR tracks, areas with pedestrians, and a couple known areas where AP is unpredictable despite clearly marked lanes (curves through intersections even with dashed lines (it will go straight and then sharply turn or just turn off (red flashing hands)).
But yea, 95% of a 49 mile round trip commute (door to door). I've been using it and I still keep it on a short leash but its useful. Caddy's Super Cruise would only give me about 25% of my local commute (since it says only interstates at present). If they lidar mapped the other roads, it would be very useful as well for a L2 system but that isn't in the cards and I don't see it changing for those buying cars now.
I also owned a HW2 car before AP existed and I've seen it glacially improve. I'm not pleased with that but what Tesla offers is still the best offered by another manufacturer.
That's where I think I part ways with anyone touting Audi, (phantom future) Nissan ProPilot, or GM.
Maybe some day for those companies but the same also applies to Tesla and we've pretty much talked our faces (as well as the cars!) blue.
Tesla wasnt first to invent or propose this setup. But they were first to shove it to market. I'm curious about the IP relationship between ME and Tesla
I doubt its that complicated. Anything that's "essential" to an industry will be mechanically licensed. Its just a fixed industry wide licensing fee. Also I'm not sure someone skilled in the arts couldn't have thought of a 3 camera set up. So then it becomes down to the particular methods and devices ME created for their particular tri cam setup and the question shifts to whether Tesla relied on any of that or did their own thing.