[joshuamorton]

Most of the non-Tesla systems do. Waymo uses lidar, radar, and cameras. The cruise vehicles I see around have lidar and radar as well, and I just assume everyone has cameras because they're cheap and easy to stick somewhere.

To be specific about waymo (to be clear I work at Google, but don't actually have any special info on this), look at the photo in [0]. The cone thing on top is a lidar, but also has cameras in the larger part under the cone. The spinny thing on the front is also probably a lidar. The fin that looks like an extra mirror on the back, and the two on the front have radar. There's also probably a forward facing radar mounted on the nose somewhere near the grille.

[0]: https://waymo.com/

[dmix]

So self driving cars are basically going to be really expensive for the first while as the sensors take time to reduce in price plus the computer in the back and less distance from the battery.

Sounds like a reasonable trade off. No one needs to own these cars just rent them on demand. Plus some wealthy people in the early adoption curve.