Nissan's driverless cars tow peers onto piers for loading

The automaker thinks the technology will, in the long run, save costs and boost efficiency. The tests also can add to knowledge needed to take such autonomous driving onto public roads. Nissan executive Haruhiko Yoshimura said the automaker hoped to use the technology throughout the Oppama plant by 2019, and in overseas plants in the future. During a demonstration Monday, a Leaf car with no one inside scooted along the road, pulling a trailer with three other Leafs on it, stopped properly for other vehicles, and then veered into a parking lot. But one vehicle ran into trouble, refused to move and was not able to take part in the demonstration.