sponsor is William Cook Cast Products, which initially cast the driving wheels on "very advantageous terms", and later assisted with all the wheels and almost all other steel castings. As with GNER, Tornado's links to the East Coast Main Line brought with it support from the next incumbent operator, National Express East Coast, with sponsorship of the third main line test run to Newcastle. Significant savings were made through industrial sponsorship; by 1998 this was keeping costs at 40% of normal. Some components, such as the smokebox door, were even obtained free of charge. Other income Cost savings of a third of the original manufacturing costs were possible in some cases where the building of one locomotive allowed for cheaper construction methods, such as using one-off polystyrene casting patterns. Several other events and fund-raising drives have assisted in funding the project, including a Land's End to John O'Groats bike ride. The Trust also received proceeds from the sale of limited edition models of Tornado in works grey livery. A new book on the story of Tornado called Tornado 21st Century Steam, written by The Guardian's Jonathan Glancey, was released on 15 October 2010. Media A BBC film crew filmed the project at certain points on the journey, up to and including the arrival and operation of Tornado running at the GCR. The resulting film was used to make a 30-minute documentary film, Absolutely Chuffed: The Men Who Built a Steam Engine. It was first broadcast on BBC Four on 16 October 2008, as part of their Golden Age of Steam season. The film was released on Region 2 DVD on 28 December 2009 with unseen material and DVD extras.Tornado and the Tornado project was also partly featured in the BBC Four documentary episode The Last Days of Steam (series 8 of the Time Shift documentaries), and also on How Do They Do It? (channel Five version, season 3 episode 3). The project also featured on BBC 2's magazine programme Working Lunch broadcast on 3 December 2007. Top Gear Race to the North On 25 April 2009, Tornado hauled a 10-coach Cathedrals Express charter from London King's Cross to Edinburgh Waverley. This private train was filmed by the BBC for a retro Top Gear Race, in which Jeremy Clarkson on the train raced James May in a Jaguar XK120 and Richard Hammond on a Vincent Black Shadow motorbike. Tornado was booked