Elon Musk must be proud...
Well if Tesla autopilot needs lane markings to work it would rarely work round by us... and what about heavy rain and snow. There have been crashes where lines in road disappeared and Teslas have gone into crash barriers while 'looking for the lines'.. Tesla Autopilot seems no better than a fancy cruise control, the difference is that cruise control works.
It doesn’t necessarily need lane lines, it can deduce drivable surfaces through road edges, path prediction based on surrounding traffic and a few other factors. The difference between Tesla AP and other systems is that the Tesla is allowed to make these educated guesses about what is drivable surface, whereas other manufacturers are more risk averse and their system just triggers a disengage in the absence of clear markings.
Of course sometimes Tesla does guess wrongly. It also has a tendency to center in the road instead of having an affinity for the left edge, which is an issue on wider two-way roads with no central markings.
Spatial awareness in non motorway settings is also lacking - although Autosteer is certified for use away from controlled-access roads as a beta product, in my 6 months with a Model 3, it managed to plough through two solid objects.
So I sent it back on a truck with bits hanging off it, and decided to wait until reliability was a bit better!
Ps. As for ACC, like most ACC on the market, Tesla ACC is basically flawless. The Honda performs just as well with edge cases such as cut ins, merge outs and stationary traffic.
