Physical buttons are increasingly rare in modern cars. Most manufacturers are switching to touchscreens – which perform far worse in a test carried out by Vi Bilagare. The driver in the worst-performing car needs four times longer to perform simple tasks than in the best-performing car.

Source: Physical buttons outperform touchscreens in new cars, test finds

This is why we bought a 2nd Gen Chevy Volt and not the 1st Gen or a Tesla.