A PROTOTYPE driverless car built by Peugeot Citroen has completed a 325 mile journey from Paris to Bordeaux where it will feature in this week's Intelligent Transport Systems World Congress.

The autonomous car, which uses an array of cameras, radar and sat nav to travel, completed the route without any human intervention.

Driving along the motorway the modified Citroen C4 Grand Picasso automatically adjusted its speed and changed lanes to overtake, taking into account other vehicles, speed limits and junctions.

PSA, the parent group of Peugeot Citroen, is due to start autonomous vehicle testing on public roads next year with a fleet of 15 vehicles.

The company says that autonomous driving features will help cut the number of accidents linked to human error and reduce driver fatigue in monotonous driving situations.

The prototype vehicle and a sophisticated PSA car-to-car communication system which uses data transmitted by other vehicles and infrastructure to enhance awareness of the vehicle's surroundings, will be presented at the 22 ITS World Congress which runs until October 11.