why is Tesla much higher? I thought Tesla's market cap was because of the self driving feature.
Waymo needs $16B to build what Tesla already has: manufacturing capacity. Without that, there are only so many cars they can put on the road. They've proven they can do the rides. But they haven't proven they can do it cost effectively. To scale up and start making a profit, they'll need to start building/buying lots of Waymo cars. That's not going to be cheap or fast. That's going to involve a lot of capital expense…
So IMO Waymo has something far more valuable than Tesla. (Obviously the market isn't rational though so I wouldn't necessarily invest based on that.)