[KeplerBoy]

Tesla actually re-introduced radar sensors in HW4. https://www.teslarati.com/tesla-hardware-4-hd-radar-first-lo...

They might not use them for autopilot, but maybe for some emergency braking stuff, when everything else failed.

[torginus]

I wouldn't be surprised if this was a better solution. I think while radar might have a worse spatial resolution, it's depth perception, speed measurement capability, and general robustness to adverse weather might make it a better complementary sensor.

Lidar struggles with things like rain and snow way worse than cameras do.