[delackner]

Indeed this "test" is laughable. "the drivers had time to get to know the cars and their infotainment systems" really though? Like an hour? Is it their personal car? "...By photographing the same driver in all cars..." How many drivers were involved and how long did they use their car?

A photo of the winning 2005 Volvo V70 shows it is a pure traditional all controls, zero screen interface. So only intentions that are possible in that era are testable. It is not feasible to have a button for every possible command today.

I've been driving Audis for several years, with their rotary dial interface, and it takes a maddening amount of time to do anything, so much that I often just give up and don't do whatever task I was trying to accomplish.

On a touchscreen, I can be driving along, then 1. take perhaps 0.1s to glance at the screen 2. while watching the road, move my hand to hover a finger where I think is the right place. 3. take another 0.1s glance where my finger is. If I was right, just tap and immediately look back at the road. 4. If I was wrong, while watching the road, adjust and repeat.

At no time am I ever looking away from the road for more than a fraction of a second, and since I don't have to think about finding where some "currently highlighted screen element cursor" is, my mind is relaxed to focus on driving, and each glance at the screen is just to look at EXACTLY what I know is the location of the feature I want to touch.