Average train in Britain was built 21 years ago
- Britain's trains are the oldest on average since records began, figures reveal
- Some carriages are still being used that were built in the 1970s and 1980s
- Caledonian Sleeper that runs from London to Scotland has 42-year-old trains

Industry figures reveal Britain's trains are 21.1 years old on average – the oldest since current records began – Office of Rail and Road (ORR) statistics show. But some services run trains built in the 1970s and 1980s
But some services run trains built in the 1970s and 1980s.

The ORR has previously said older trains can result in worse reliability, less comfortable journeys and poorer performance than modern versions, although it notes that older rolling stock can be refurbished.
Travellers using the Caledonian Sleeper service between London and Scotland have to put up with Britain's oldest trains at 42 years old, although completely new sleeper trains are being built by CAF.
Merseyrail, which runs trains in Merseyside, has the second oldest fleet at 38 years old, but again new trains are on order and will soon be in service.
TransPennine Express, which operates in northern England and Scotland, has the newest trains at an average of just nine years old. They also have new trains and loco hauled carriages being built.
Campaign for Better Transport chief executive Stephen Joseph claimed the age of Britain's trains shows 'just how far the railways have to go to modernise'.
ORR data shows the average age of rolling stock between January and March each year since 2001.
A number of new trains were introduced following the end of British Rail in the mid-1990s but the average age has risen during the past decade.
The Rail Delivery Group (RDG), representing train operators, says more than 5,500 new carriages will be in use across Britain by the end of 2020 and many other trains are undergoing multi-million pound refurbishments.
Chief executive Paul Plummer said: 'This will help to deliver our commitment to boost customer satisfaction so that Britain continues to have the most highly rated major railway in Europe.'

Trains in London and south-east England are typically 18 years old, while regional services are 24 years old.
The latest research by watchdog Transport Focus found that fewer than seven out of 10 (68 per cent) passengers on regional trains are satisfied with the upkeep and repair of carriages, down by two percentage points in the last 12 months.