Southern's entire Electrostar fleet has been upgraded with phone-charging points and improved wifi.
A £100m project has refurbished over 300 London commuter trains, ensuring they remain operational for another 15 years.
The five-year project, celebrated at Southern's Selhurst depot in south London, has seen the refurbishment of 304 "Electrostar" trains, also used for the Gatwick Express.
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Author's summary: Southern refurbishes 304 trains.