The first e320 trains are undergoing tests and will start to enter service between London, Paris and Brussels at the end of 2015. They are part of \u00a3700m investment programme which includes the refurbishment of the existing fleet.\r\nThe e320 has a maximum speed of 320km\/h and will be the first passenger train with distributed traction to enter commercial service through the Channel Tunnel. The existing trains have power cars at each end and a top speed of 300km\/h.\r\nThe livery and the interior of the new trains have been designed by Pininfarina, Italy. Eurostar says that despite having 900 seats \u2013 20% more than the existing trains \u2013 passengers will have more room. All passengers will have access to free Wi-Fi and power sockets.\r\n\r\nInterior of a business-premier coach.