The new Heathrow Express fleet of 12 refurbished Class 387 trains has now entered service, replacing the iconic Class 332 fleet which dates from 1998.
The former GWR trains have upgraded interiors and are fitted with regenerative braking and ETCS in-cab signalling.
Passengers will also have a more comfortable journey with more space for wheelchair users, double the number of toilets and a continuous gangway through the whole train. In addition, Business First passengers will enjoy worktables and extra legroom.
The modern interiors include USB plugs with every plug socket, making it easier for international passengers to charge devices while they travel.
Every carriage has more and improved TV screens showing live flight and rail connection updates, daily news highlights and shopping deals at Heathrow.
Heathrow Express is naming all 12 new trains after cities voted for by the UK public, and is giving away prizes in conjunction with Heart Radio.
Heathrow Express director Sophie Chapman said: “I am delighted to introduce the new Heathrow Express 387 fleet, which will provide Heathrow passengers with a modern, reliable train for their journey between central London and the UK’s hub airport.
“I am also pleased that Heathrow Express is at the forefront of the industry-wide roll out of state-of-the-art signalling technology as we are one of the first UK train companies to run the European Train Control System – a huge step forward for the British rail industry. ETCS provides an on-board signalling system which is a gold standard of safety and efficiency.”