Introduction Named after their custom blue livery , the trains were conceived under the railway NUMBER@1 Modernisation Plan , to create new luxury first-class diesel express trains , to compete with the motor car and the emerging domestic air travel market .

Named after their custom blue livery , the trains were conceived under the railway NUMBER@1 Modernisation Plan , to create new luxury first-class diesel express trains , to compete with the motor car and the emerging domestic air travel market .
