Long motorway journeys can be monotonous and tiring, so wouldn't it be great if you could sit back and let your car take over the driving instead – leaving you free to do something more interesting?
It might sound far-fetched, but that's the very serious aim of vehicle technology specialist Ricardo, one of the partners in the EU-financed Safe Road Trains for the Environment (SARTRE) programme.
SARTRE recently carried out its first non-simulator tests at Volvo's proving ground in Sweden.
A convoy of drone cars followed a lead vehicle driven by a professional driver, and each adjusted their speed and direction to maintain a set gap from each other.
The idea is that computer-controlled platoons of cars could make more efficient and safer use of motorways by travelling close together.
The SARTRE programme estimates that accidents could be reduced by 80% and that fuel consumption and emissions would both improve by 20%.
Watch driverless cars in action
Watch our video to see how researchers are getting close to creating 'platoons' of driverless cars.
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