Required safety systems include emergency breaking, emergency lane-keeping, intelligent speed assistance (car must use cameras or GPS to determine current speed limit), driver attention warning systems and many more.
That fancy screen is really not a cost factor. These days you can buy after-market screens with Car Play and Android auto support for 100 EURs or less. But all the safety systems needs lots of sensors, and also the ability to auto-brake and auto-steer in emergency situations.
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