The service to Derry has suffered from a lack of funding over recent decades. The existing line is not continuously welded and has speed restrictions in parts. For some time the threat of closure hung over this route but a funding package of £20 million was confirmed in December 2005. The same month saw the introduction of the new CAF railcars on the line and despite the fact that the service remained slower than the Derry-Belfast Ulsterbus service, the improvements saw a rise in passenger numbers to over 1 million per annum. However, these in 2007 when it was revealed that the £20 million earmarked had not been spent while there had been a £20 million overspend on the Belfast–Bangor line, and the "Into the West" rail lobby group had proposed extending the line cross border into County Donegal to Letterkenny and then on to Sligo, thus releasing EU funding.