ONE PERCENT

摘要

It feels odd letting go of the steering wheel at 90 kilometres an hour - but you get used to it. Welcome to platooning, in which cars in convoy are linked via a version of Wi-Fi into a road train, under the control of a lead driver. Most of the technology required is already in top-end cars. Platooning could cut fuel use by 20 per cent, says Volvo, which is exploring the idea at its research centre near Gothenburg, Sweden. See how our reporter got on when he tried it at bit.ly/platooning.