Wikipedia: "The Siemens Desiro can be built as a diesel or electric multiple unit (DMU or EMU). It is normally configured as two- and three-car trainsets. Although there are various differences between individual trains, the basic body design is the same. These trains are mostly used for regional services, and belong to a new generation of light, modular trains which have become common in many European countries."
The 1,200 year old “Free Hanseatic City of Bremen” and its North Sea port sister of Bremerhaven make up a two-city state, which is the smallest of Germany’s sixteen states. The cities are separated by a mere 60 kilometers along the river Weser. Bremen is a center of technology, renowned for its leadership in aircraft construction and space station assembly as well as space propulsion systems. The city-state earned the distinction of being named the “City of Science” in 2005 as demonstrated by the science center “Universum Bremen” and the “EADS Astrium”.