The actual "study" (really, an unscientific test) is here:
https://www.vibilagare.se/english/physical-buttons-outperfor...
At home we have both traditional vehicles with lots of knobs, and vehicles (Tesla) with mainly touchscreen buttons and voice commands. My personal experience:
* It takes at least a few weeks to become familiar enough with the touchscreen buttons and voice commands that they become second-nature.
* Commonly used functions are accessed by pushing a physical button on the steering wheel or on one of the stalks, or by pressing a touchscreen button that is always where you expect it to be.
* Once your body memorizes a small subset of commonly used functions, you use them without even thinking about them.
* Less common functions are hard to find in all vehicles, and are often nested in obscure sub-menus.
I'm OK with going "all-in" on touchscreen buttons and voice commands, complemented by a small number of physical buttons for commonly used functions.
https://www.vibilagare.se/english/physical-buttons-outperfor...
At home we have both traditional vehicles with lots of knobs, and vehicles (Tesla) with mainly touchscreen buttons and voice commands. My personal experience:
* It takes at least a few weeks to become familiar enough with the touchscreen buttons and voice commands that they become second-nature.
* Commonly used functions are accessed by pushing a physical button on the steering wheel or on one of the stalks, or by pressing a touchscreen button that is always where you expect it to be.
* Once your body memorizes a small subset of commonly used functions, you use them without even thinking about them.
* Less common functions are hard to find in all vehicles, and are often nested in obscure sub-menus.
I'm OK with going "all-in" on touchscreen buttons and voice commands, complemented by a small number of physical buttons for commonly used functions.