The only "tech" things I ever seem to use in a car are cruise control and the entertainment system. On a recent trip I had a rental car with all the in-car controls on a touch screen. I appreciated the convenience of being able to adjust the cruise control and climate control, play tunes, tune the radio and so on, all from a common interface. This is a car, dammit, not a mobile computer laboratory. Techie toys must do more than be cool. They must solve problems.
I'm reminded of airplane glass cockpits. Pilots rarely need exact numbers, most of the time they just need a glance at an analogue display. "Full power...confirmed! Gauges green...airspeed alive...rotate..."