Conventional mortality would dictate that the car minimize global loss of life
I don't know about that. "Conventional morality" is not a well-formed or a coherent system and there are a lot of situations where other factors would override minimizing loss of life.
What kind of things override loss of life and and can be widely agreed upon?
When a collision is unavoidable, should a self-driving car try to maximize the survival chances of its occupants, or of all people involved?
http://www.wired.com/2014/05/the-robot-car-of-tomorrow-might-just-be-programmed-to-hit-you/