Having the rendered car's view visible to passengers inside is a very great idea for at least the first couple generations of self-driving cars, and especially being as prominent as they are in this car. It helps get people comfortable with the idea, and feel better knowing the car is picking up on everything in its surroundings.
I'm a bit skeptical about if those are real graphics though -- they look quite detailed beyond what I feel the 'sensors' can see, but maybe I just underestimate this technology.
The screens are also (unfortunately) a great place to blast ads at a quite literally "captive" audience, but I digress.