more efficient operation. CRH1B On October 31, 2007, the Chinese MOR ordered 20 sets of CRH1B trains (CRH1-041B～CRH1-060B). CRH1B is a fleet-extended CRH1A. Each CRH1B consists of 16 cars, including three first class coaches (ZY), 12 second class coaches (ZE) and one dining car (CA). CRH1B, however, have not such restriction on the operational speed, the maximum speed is still . CRH1B first come into commercial use on April, 2009, between Shanghai–Nanjing & Shanghai–Hangzhou. On July 23, 2011, CRH1-046B was hit on ZY104600 car by CRH2-139E in Yongtaiwen PFL accident. CRH1E On October 31, 2007, the Chinese MOR ordered 20 sets of CRH1E trains (CRH1-061E～CRH1-080E). The CRH1E is the first high-speed 16-car sleeper train (10M6T) in the world which is based on Bombardier's ZEFIRO design. The train was designed by Bombardier and Zagato. Each train set from the first 12 trainsets consists of one luxury sleeper (WG), 12 soft sleepers (WR), two second class coaches (ZE) and one dining car (CA). The first CRH1E trainset delivered at October 2009, first come into service on November 4, 2009 between Beijing–Shanghai. In fact, only 15 CRH1Es were delivered, three of which having the luxury sleeper replaced with normal sleepers. The other five ended up being CRH1Bs, this time based on the CRH1E design (instead of CRH1A). Later on five additional CRH1Es (based on the CRH1A-A design) have also been manufactured and delivered. CRH380D The CRH380D is also derived from the Bombardier Zefiro family (Zefiro 380) of very high speed EMUs and are not direct derivatives of the Regina type trains from which the CRH1A and CRH1B classes are derived. Top speed is advertised at . The eight-car version is designated CRH380D, series number CRH380D-1501 ～ CRH380D-1585. Formation Power Destination M – Motor car T – Trailer car C – Driver cabin P – Pantograph Coach Type ZY – First Class Coach ZE – Second Class Coach ZYE – First Class／Second Class Coach ZEC – Second Class Coach／Dining Car ZYT – First Class／Premier Coach ZET – Second Class／Premier Coach ZYS – First Class／Business Coach ZES – Second Class／Business Coach WR – Soft Sleeper Car WRC – Soft Sleeper / Dining Car WG – Luxury Sleeper Car CRH1A & CRH1A–A Set Nº. 1001～1021, 1167, 1168 Set Nº. 1022～1040 Set Nº. 1086～1090, 1094～1104, 1106～1109, 1117～1119 Set Nº. 1081～1085, 1091～1093, 1105, 1110～1116, 1120 Set Nº. 1121～1166 Set Nº. 1169～1228, 1234～1260 CRH1B Set Nº. 1041～1060 Set Nº.