 To commence operations, seven Class 66/7s were ordered.Subsequent orders brought the total purchased to 72 by the end of 2014 with a further seven delivered in 2016.In October 2012 three unused Class 66s, ordered by Crossrail Benelux but stabled in the Netherlands, were purchased and, later in 2013, a further two Class 66s that were previously in service in Europe were also obtained.