This is what Crossrail's trains will look like in 2017

This is what the new Crossrail trains will look like when they finally arrive in 2017.

The images released by Transport for London (TFL) show what the inside and outside of the 1,500 capacity, Wi-Fi and 4G equipped trains will be like.

Designed by TfL, Bombardier and Barber & Osgerby, the new fleet, which strongly resemble the new Tube trains designed by PriestmanGoode, will replace the models that currently run between Liverpool Street and Shenfield.

The rest of the fleet will start on the line when Crossrail fully opens in 2019. The new train line has seen more than 23 miles of tunnels carved out under the surface of London -- and ten previous images of the tunnels show their scale.

The development of the rail service has also seen archaeologists rewriting London's history. During the digging of the tunnels more than 10,000 artefacts have been discovered across 30 different sites. At one site the remains of 30 victims of the Great Plague of 1665 were found.

Inside the new trains are a mixture of different seating styles with some facing sideways and other groups of four that are similar to the majority of commuter trains.

Each train is planned to be 200 metres long, and are being built at the Bombardier premises in Derby.

Mayor of London Boris Johnson said the new trains will "add vital capacity" to the rail network and said their introduction would be a step forward for the Crossrail project.

This article was originally published by WIRED UK