> So what? You've got physical buttons? Big whoop. That physical button that takes 500ms to respond is still as dangerous.
No, that's wrong. Problem with touchscreens is that (1) you need to look at them and (2) there is no tactile feedback of whether you pressed it or not and (3) you need to hover your arm in a moving car at just the right spot.
Physical buttons cleanly resolve all of these major problems.
If the actual action has a perceptible delay, that's annoying but not dangerous. Given that with a physical button you didn't have to take your eyes off the road and given the tactile feedback you know for sure you activated/pressed/moved the control, you know the control has been activated even if the effect is delayed.
With a touch screen, if there is a delay, you'll have to keep taking your eyes off the road again and again, triple checking if you pressed on the right spot or not.
No, that's wrong. Problem with touchscreens is that (1) you need to look at them and (2) there is no tactile feedback of whether you pressed it or not and (3) you need to hover your arm in a moving car at just the right spot.
Physical buttons cleanly resolve all of these major problems.
If the actual action has a perceptible delay, that's annoying but not dangerous. Given that with a physical button you didn't have to take your eyes off the road and given the tactile feedback you know for sure you activated/pressed/moved the control, you know the control has been activated even if the effect is delayed.
With a touch screen, if there is a delay, you'll have to keep taking your eyes off the road again and again, triple checking if you pressed on the right spot or not.