Swedish tests show touchscreens can take four times longer than physical controls to complete common tasks.
https://etsc.eu/physical-buttons-outperform-touchscreens-in-new-cars/
'According to the magazine’s conclusions, the easiest car to understand and operate, by a large margin, was the 2005 Volvo V70. The four tasks were handled within ten seconds during which the car drove 306 meters at 110 km/h.
At the other end of the scale, was the Chinese electric car, the MG Marvel R. The driver needed 44.6 seconds before all the tasks were completed, during which the car had travelled 1,372 meters – more than four times the distance compared to the old Volvo.'