Wikipedia
The CargoSprinter is a freight multiple unit designed to transport freight or equipment. The CargoSprinter was designed by Windhoff GmbH (Germany) in the mid-1990s.
Initially seven vehicles were built for Deutsche Bahn. Four were built by Windhoff and had the reporting code DB class 690. Another three closely similar units were built by Waggonfabrik Talbot ('Talbot Talion') and given the reporting code DB class 691. The design did not lead to further freight work, several of the trains were later converted for other uses including tunnel rescue trains.
A variant for infrastructure and service trains, named the Multi Purpose Vehicle has been sold to a number of countries, mainly for use by rail infrastructure companies, including the United Kingdom ( Railtrack; track maintenance and specialised overhead electrification train), Switzerland (specialised tunnel rescue and firefighting version), and the Netherlands and Taiwan (maintenance of high speed lines).