[abalone]

10X safer and/or less stressful would be more than sufficient to revolutionize cars. I think the notion that the only thing you can improve on is fun/entertainment is kind of stuck in traditional car thinking. Making cars safer and more convenient via autopilot features is where you get a 10X leap.

I doubt there will be anything like a "meditative state" -- that's dangerous. On the contrary a goal of the UI would be to keep the driver highly engaged with the vehicle computer at all times.