If you cut engine power hydraulic steering is basically dead, as are the brakes. The power assist on brakes usually uses engine vacuum and power steering is mostly driven by a hydraulic pump running off the motor. I'm not sure about the newer electric steering models.
But for most cars, simply having a stalled engine makes them nearly undriveable due to the weight of the controls.
I think that driver training should start with unassisted cars - no abs, power steering, power brakes and no stability control. And that early training should include skid control.
Once competency in those areas is gained, then move to bugger cars with power systems and electronics.
I'll always be grateful for learning to drive in a completely manual car with no power assist on anything. It means I can always tell when the car is doing something for me. I still drive an older car for fun which is completely 'analog'. It's mic more rewarding to make good progress by using skill rather than silicon.
But for most cars, simply having a stalled engine makes them nearly undriveable due to the weight of the controls.
I think that driver training should start with unassisted cars - no abs, power steering, power brakes and no stability control. And that early training should include skid control.
Once competency in those areas is gained, then move to bugger cars with power systems and electronics.
I'll always be grateful for learning to drive in a completely manual car with no power assist on anything. It means I can always tell when the car is doing something for me. I still drive an older car for fun which is completely 'analog'. It's mic more rewarding to make good progress by using skill rather than silicon.