<i>This is not completely correct: your Leaf does have a purely electronic throttle and the e-brake is actuated by a solenoid, but no production passenger car presently uses brake-by-wire</i><p>Thanks for the correction. I ass-u-med (and actually do recall reading it somewhere, but just some dude on a Leaf forum probably) that because of all the computerized fiddling required to balance regen braking with mechanical braking, the brake pedal was just a fancy potentiometer.<p>As for steering, I went to garage between builds and looked: yup, there&#x27;s a mechanical linkage in there. Shows how often I lift the hood on that thing. :-)<p>I&#x27;ll leave my error-filled post as-is as an example of how being a pro mechanic 20 years ago doesn&#x27;t mean you know everything about modern cars. :-P