> I believe that different subsystems in the car - especially life safety / critical driving systems - should have vastly different controls that force differen

> I believe that different subsystems in the car - especially life safety / critical driving systems - should have vastly different controls that force different physical interactions. Absolutely. For example, in a manual VW/Audi, you have to push the stick down, then way over into R. It's one of the nicest feeling gestures, makes your intent extremely clear, and is impossible to do by accident.