I think there was some discussion about the ethics of the software in google's cars because they would solve driving problems with a view to minimizing harm to

I think there was some discussion about the ethics of the software in google's cars because they would solve driving problems with a view to minimizing harm to all involved, not merely the car's occupants. So I think this kind of thing is very much in development, and indeed more sophisticated than that (e.g. The car might swerve into another vehicle to avoid hitting pedestrians).