377/4 series Electrostars were built by Bombardier Derby between 2003 and 2005. They are 4-car 750 volt third rail units rated at 1119 kW, 1500 hp with a top speed of 100 mph, 162 km/h

377 461 has just arrived at Eastbourne with the 06:47 London Victoria to Ore on Thursday May 1st, 2008.