About a dozen trucks from major manufacturers like Volvo and Daimler just completed a week of largely autonomous driving across Europe, the first such major exercise on the continent.

The trucks set off from their bases in three European countries and completed their journeys in Rotterdam in the Netherlands today (Apr. 6). One set of trucks, made by the Volkswagen subsidiary Scania, traveled more than 2,000 km and crossed four borders to get there.

The trucks were taking part in the European Truck Platooning Challenge, organized by the Dutch government as one of the big events for its 2016 presidency of the European Union. While self-driving cars from Google or Ford get most of the credit for capturing the public imagination, commercial uses for autonomous or nearly autonomous vehicles, like tractors from John Deere, have been quietly putting the concept to work in a business setting.

Read the whole article at Quartz.