Rows of red, grey and yellow tram-trains are lined up at the Transport for Wales South Wales Metro depot in Taff's Well Image source, Getty Images
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Transport for Wales say the tram‑trains are "central" to delivering the faster, more frequent journeys on the South Wales Metro

ByDaniel Davies, Wales political correspondent, Peter Shuttleworth and Ben Summer, BBC Wales
  • Published25 minutes ago

A new fleet of publicly funded trains that cost more than £200m still remain mostly unused more than three years after the first one was delivered.

They were initially promised to be fully up and running by 2022 but Transport for Wales' boss has said it might not be until the end of 2027 when their tram-trains will be in full service.