There is nothing particularly complicated with this technology - GPS navigators took root in Western cars a long time ago, all that was left was to get their information into the on-board computer, remembering all the limitations.
The problem suddenly appeared in the legal sphere: will a person want to be under the control of such total control? Then it was decided to conduct phased experiments on volunteers. First, in the Dutch town of Tilburg (there were 20 "rabbits" there), then - since 2002 - in Sweden with a much larger number (10, 000) of cars.
And now - the results of the ISA testing were published: in the group of subjects, accident rate decreased by 30%, fuel consumption - by 11%, and two-thirds wished to leave the prototypes of devices in their machines forever.