I don't want touch screens in cars period and I can't stand this trend of using them. I'm finally starting to understand the feelings my grandfather had for anything thing he considered superfluous or inconvenient in a car.
Same could have been said for smartphone physical keyboard yet here we are. Touch screen is a better interface because the UI can adapt to the context. I get that when you are driving you don’t want to have to look at the screen but honestly the benefits far outweigh the perceived cons.
And no way does a touch screen have benefits that outweigh the benefits of dedicated tactile controls for the driver.