New pod

Virgin Hyperloop unveils new pod concept video

Rather than connecting to form a train, the pods will travel in convoy, able to leave and join a static track individually, like cars on a motorway.

Last year, Virgin Hyperloop completed its first crewed test-track journey, reaching speeds of 170km/h.

But a critic says the video is "hype".

Railway engineer and writer Gareth Dennis tweeted it was "a glossy video that says, 'Everything works and is great,' with nothing more than some CGI [computer-generated imagery] and a giant winky face".