yeh thinking about it, cars could be updated with sensory experience via the internet from various robots around the world - so long as we find a way to transform those experiences into the sensorium of the car. For example, if a robot somewhere had felt snow with its feet and legs, it could send its experience to cars and they could transform that experience into what it would feel like under their wheels (which are the feet of cars)

And this is why you don't want to be one of the first people riding self driving cars. Especially since there isn't even a way for you to manually inform the car about things like this.

I wouldn't worry about that, millions of miles have been driven by them by now. By the time you get into the first mass produced truly self driving car you will not be able to compete with it.

Right now, you manually inform the car by driving that part yourself. By the time that changes, these cars will have billions of miles of experience.