Between 2000 and 2002, Melbourne's fleet of Comeng trains were given an extensive internal and external refurbishment. At the time the Melbourne suburban network was being run by two separate private operators, and as a result the fleet was refurbished by two separate companies to different styles. By 2004 the network had come back under control of the one operator, but it was not until 2007 that the two types were modified to run together in multiple unit again. The main external difference is the replacement fiberglass fronts - the two types can be seen here passing at Caulfield. The Alstom refurbishment is on the left, with the EDI rail refurb on the right.
