[necubi]

Even worse, according to the techcrunch article [0] the projection screen is mostly opaque, so passengers won't be able to see out the window.

[0] https://techcrunch.com/2018/08/15/grabb-it-wants-to-turn-you...

[kkaranth]

Later in the same article:

> It’s meant to only run when the driver is between rides. Once a passenger hops in the car, the projector is shut off — because, well, no one wants a projector blasting light in their face on the way to their next meeting.

So, they intend to use it as a means for drivers to make money when they are not in the middle of a trip.