It has, more recently, been used for testing Virgin Trains' Pendolino units and is currently being used for the testing of new stock for London underground built by Bombardier in Derby.
The introduction of Virgin Trains' Pendolino electric multiple units on the WCML caused a large surplus of Mark 3 vehicles, which ended up in storage at Long Marston.
Following privatisation of the UK railways, the test track was taken over by Alstom and electrified on the 25kV overhead system in order to test the Virgin Trains tilting Pendolino fleet.
This was for safety reasons following projected speed increases to 125 miles per hour on the line by Virgin Trains' tilting Pendolino trains.
As this station is part of the West Coast Main Line to Carstairs, which diverges at Mid Calder Junction, a colourful variety of CrossCountry Class 220 "Voyager", Virgin Trains Class 221 "Super Voyager", Class 390 "Pendolino" and East Coast InterCity 225 can also be seen.