Earlier quoted context omitted.
Yeah seems like physical controls for input, screen for output is the sweet spot.
I think you can go more detailed on that and say physical controls for common, quick inputs especially ones people use while they are driving and you don't want them to look down for. Touch screen is fine for setup screens, extra info, fine tuning stuff etc. Point is when I'm driving down the road I should be able to muscle memory/tactily skip song, change volume, change air-conditioning settings etc... But Bluetooth…
Yes, anything that could ever conceivably be needed to be used by the driver while driving must have a physical, mechanical control.
Things that can be configured while the car is parked and never need to be changed while driving, can be ok on a touch screen.