Stuttgart to Sigmaringen train with Deutsche Bahn (RE,ICE)

Südwestdeutsche Verkehrs-AG (SWEG) is a public transport company operating rail and bus services primarily in Baden-Württemberg, Germany, and some neighboring regions. The company was formed in 2018 from the merger of Südwestdeutsche Verkehrs-Aktiengesellschaft and Hohenzollerische Landesbahn. SWEG operates various railway lines, including the Achertalbahn, Münstertalbahn, and Harmersbachtalbahn, and is also involved in freight transport. They utilize different train types, such as Regio-Shuttle RS1, Talent 3, LINT 54, and Mireo Plus B. SWEG is owned by the state of Baden-Württemberg.

Intercity is a widely recognized brand for express train services that connect cities over longer distances, often with limited stops and comfortable carriages for long-distance travel. The term "Intercity" originated in the United Kingdom in 1966 with British Rail's electrification of the West Coast Main Line, becoming a brand for their main-line passenger routes. Today, Intercity services vary across Europe, with some countries like Switzerland offering modern, high-standard trains, while in others, they may be older compared to newer high-speed options. Many European countries use "InterCity" as an official brand name for regular, long-distance train services meeting specific speed and comfort criteria. For example, PKP Intercity is a major Polish rail operator connecting cities and tourist resorts within Poland and across Europe. Trenitalia's Intercity trains in Italy offer an affordable and widespread means of rail transport, connecting various cities and towns. These trains typically offer Standard and First Class services, with amenities like power sockets and sometimes catering.