 A further order for an additional 51 cars, formed into 17 three-car units and totalling €140 million, was made in March 2009, for use to other suburban destinations, including Dundalk, Portlaoise, Longford and M3 Parkway.In July 2007, IÉ announced that it was in the process of placing orders for a further 400 carriages.The bulk of these (up to 250 cars) was intended as EMUs for the expansion of the DART services following completion of the DART Underground.