Technology that links vehicles into "road trains" that can travel as a semi-autonomous convoy has undergone its first real world tests.
The trials held on Volvo's test track in Sweden slaved a single car to a lorry to test the platooning system.
Trains of cars under the control of a lead driver should cut fuel use, boost safety and may even cut congestion.
Project researchers believe platoons of cars could be travelling on Europe's roads within a decade.
Here is video of the action.