TfL has unveiled the designs for the new Crossrail trains

Crossrail update alert! We might have to wait until 2019 before we can actually use Crossrail, but TfL has just released the designs for the new Crossrail trains - and they look pretty darn swish. Firstly, let's talk size - each train will be 200 metres long, which is one and a half times longer than the longest tube train. The trains will also have free wifi, access to 4G, on-train customer information services with real time information AND they'll be fully air conditioned - in your face, Central Line. As well as stopping us from overheating, the trains will also be doing their bit for the environment, using up to 30 percent less energy by regenerating electricity back into the power supply when the brakes are on. The full nine-carriage trains will be in action from 2018, but a shorter seven-carriage version will be hitting the tracks on the Liverpool Street to Shenfield part of the Crossrail route from May 2017.

See more of the new designs:

Take a look behind the scenes of Crossrail's tunnel digging.