That could be solved easily (and probably more accurately) by just having a few nudge buttons or some other UI. Use them for those "Move left a few more inches"

That could be solved easily (and probably more accurately) by just having a few nudge buttons or some other UI. Use them for those "Move left a few more inches" or "Back up just a little more" situations. These cars should be able to do fine maneuvering/adjustments much better than a lot of people can.