Sound and Psychology
It is funny how having a sound effects perception of things. When movies changed from silent films to those with a sound track; a lot of the actors could not make the transistion. In the silent films, people imaged how the actors sound but when they heard the real voices there was a dissonance with what the audience imagined and the real voices.
Another example goes back to keypunch keyboards. IBM used a relay to make the key click feedback that helped people know when the key action worked. That relay was adjustable so that the keyboard would "feel" faster or slower. The movement of the key was the same distance but if the relay was adjusted too close then it felt like you barely touch the keys and if adjusted too far then it was as bad as typing on a manual typewriter.
Myself, I think I would rather make the motor noises with my mouth than to have a fake engine sound that makes me think I have more power in the engine; at least I can indulge my fantasy instead of dealing with someone else's fantasy of a powerful motor.
