sentences:  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.