If their cheap-asses had actually done something other than cheapest possible implementation for the majority of input devices it might have been ok. Having driven several cars with touch input for various features the complaints I have are all the same:

1. too many menus with unintuitive directories that put what should be top-level systems several layers deep. IOW, I want to turn on the AC. I shouldn’t have to climb out of the Sirius menu then down 2-3 layers to turn on the AC and choose the ventilation configuration and temperature.

2. Horrible UI design. Things that need to be tapped/touched are either too small and/or too close together. You shouldn’t need to divert your attention to focus on a 1/4” square “OK” touch element when this should have a touch area minimum of a square inch so you can hit it without too much concentration. UI’s are too cluttered.

3. closely related to #2 - awful sensitivity of the screen. Small buttons that are hard to accurately hit are worsened by touch screens that don’t register input. Now you’re trying to accurately hit a patch of screen that is refusing to accept the tap, so now you’re further distracted and frustrated trying to get you music stream to play or whatever.

I don’t hate touchscreens, they can be useful, but manufacturers have implemented them at the expense of actually driving the car.