Bombardier Transportation was contracted as the builder of the new fast trains in late November. The VLocity trains, with a top speed of 210 km/h, were to be constructed at Bombardier's Dandenong factory at a cost of $410 million, including a 30-year maintenance agreement. Meanwhile, the government suffered sustained criticism of the project following the release of research commissioned by the National Party and carried out by ACIL Consulting, which claimed that the economic benefits of fast rail had been massively overestimated. However, the government denied the report's findings, and the Liberal Party refused to support the Nationals' stark opposition to the project, though it agreed the episode showed the plan had not been sufficiently scrutinised.