Some modern things on cars are useful, my focus has cameras in the windscreen that read the road signs and display them on the dash, city stop that applies the brakes for you in an emergency at speeds below 20mph, lane assist that notifies you with a vibration of the steering wheel if you drift over the white line, don't correct it and it will steer back in for you.
City stop has saved me once when some tart in front of me pulled away at a junction then stopped half across it, I was looking through the side window to see if it was clear, not noticing she had stopped so I would have rear ended it.
But on the other hand a lot of modern technology in cars is a total distraction and should be banned, phone integration to the dash so you can pretty much use your phone while driving, the Citroens with a camera in the rear view mirror for uploading pictures straight to social media etc.