A hydrogen-powered train has travelled on Britain’s rail network for the first time.
The prototype, called the Hydroflex, made a 25-mile round trip in Warwickshire, reaching speeds of up to 50 mph.
Its next phase is to move the hydrogen tanks, fuel cell and battery out of a carriage and stash them underneath the train.
The aim is for the train to start carrying paying passengers by the end of 2021.