Mercedes-Benz UI for cars circa 2015 has to be the worst piece of UI I have used in the last 30 years. It is slow, unintuitive, has both touch controls and a tu

Mercedes-Benz UI for cars circa 2015 has to be the worst piece of UI I have used in the last 30 years. It is slow, unintuitive, has both touch controls and a turning knob that has no semblance of sanity, and each has exclusive UI control properties.