Prototype: HUPAC universal locomotive, road number D753. Its striking appearance has given it the nicknames Diving Goggles and Cobra. Built starting in 1970, updated starting in 1991 and starting in 2001. Diesel electric drive. The locomotive looks as it did around 2004. The Hupac Group consists of 17 firms with locations in Switzerland, in Italy, Germany, the Netherlands, Belgium, Poland, Russia, and China.