A system that takes forever to fiddle with and get to work is the biggest distraction. If this works seamlessly, I think it will be better than what people are doing now.
No kidding. I remember I once drove a Volvo S80 as a rental for a business trip. That car has safety devices up the wazoo -- parking radar, "hey you're tailgating" alarms, lane-drift sensors, it even shows you a picture of a coffee cup and says "maybe it's time for a break" if you drift around in your lane too much.
And the reason I know this? I was trying to figure out how to turn on the radio, which caused me to drift around a bit on the highway (luckily it was nearly empty).
Have you seen the controls on the Volvo center console? It is insane. Not to mention a full motion LCD screen interface in the dash with a 4-way controller on the steering wheel.
Talk about confusion. There's a whole telephone keypad on that panel. They did want drivers to be
less distracted, right?
Roads will be very dangerous in the near future
Drivers will certainly need to be trained to leave the toys alone, and that's more difficult now with more toys (and this culture of instant-access).
I recently installed a Parrot Asteroid Smart, which is basically an Android tablet running the radio system. It lets you run Android apps like Google Maps, GasBuddy, etc. (Technically you could even run Angry Birds on it.) It was definitely a tempting distraction for the first couple of weeks that I had it. It took a few weeks for the novelty to wear off so I didn't find myself subconsciously glancing at the bright screen all the time.
Research shows what distracts us least and what distracts us most, e.g., most people can talk to passengers safely and listen to the radio safely, but their abilities are impaired when talking on the phone. CarPlay may solve the problem of fumbling with hardware but it's still subject to the problems of distraction that we already have.
That's actually one argument against touch screen interfaces. With a knobs-and-buttons interface, you can remember the positions and eventually reach out to change the volume without even taking your eyes off the road. With a touch interface you need to glance at the screen to confirm where the touch targets are while you're moving your fingers toward them.
I distinctly remember one of my first in-car driving lessons where the instructor had me doing 100 km/h on the freeway and then said "now, change the radio station". He watched me carefully and commended me that I did it in two steps: first, take a quick glance down to the radio to see where the knob was, then return my eyes to the road while moving my hand to the position that I had just memorized.