Always seemed like a cargo cult: iphone good; touch good; buttons bad (steve said). Let’s hope it’s a new trend! I love that my Audi still has tactile buttons and wheels, and was a big factor in choosing it. My previous car had a touch screen and it was so dangerous having to brace my hand for accuracy and stare at my fingers while driving.
How do you feel about the MMI scroll wheel? I don’t feel safe using that either; it still requires eyes on the screen to see what you’re selecting. Even my passengers, who can give it their full attention, are routinely stymied by the process of pairing their phones for Bluetooth audio playback. At least I can get the volume and temperature knobs by feel.
Controlling the temperature or music volume will be done while driving so they should be actual buttons that your muscle memory will reach with no mental effort or distraction. Adjusting the suspension settings or typing in a GPS address can be done via a touchscreen since it's unlikely you'll do it on the move and touch offers a better experience for this.