Tübingen Hbf to Heidelberg Hbf train with Deutsche Bahn (RE,ICE,IC)

Deutsche Bahn (DB) is Germany’s main train operator, running around 40,000 domestic and international services each day. Its fleet includes a variety of train types: high-speed ICE (Intercity Express) trains, reaching up to 300 km/h; IC (Intercity) and EC (EuroCity) trains for long-distance travel; and IRE (Interregio-Express), RE (Regional Express), and RB (Regionalbahn) services for regional and local connections. While bathrooms are standard on all trains, amenities such as onboard restaurants and free Wi-Fi are available only on certain train types and routes. DB offers a wide range of fares, including Super Saver, Saver, and Flexible tickets, along with discount cards like the BahnCard 25, 50, and 100. Additional options include single tickets, day tickets, and group tickets. Popular routes include Berlin–Munich, Hamburg–Frankfurt, Cologne–Stuttgart, Berlin–Dresden, and Hamburg–Cologne, as well as numerous regional services across Germany.

The ÖBB Euro City is a high-speed train service operated by the Austrian Federal Railways (ÖBB). It is one of the most popular train services in Austria, connecting major cities across the country. The Euro City trains are modern and comfortable, with air-conditioned coaches and plenty of legroom. There are two types of Euro City trains: the EC (Euro City) and the IC (InterCity). The EC trains are the fastest, with speeds of up to 200 km/h, while the IC trains are slightly slower, with speeds of up to 160 km/h. The ÖBB Euro City offers a variety of ticket types, including single tickets, return tickets, and group tickets. Onboard facilities include free Wi-Fi, power sockets, and a restaurant car. The most popular routes for the ÖBB Euro City include Vienna to Salzburg, Vienna to Innsbruck, and Vienna to Graz. These routes offer stunning views of the Austrian countryside and provide a convenient way to travel between major cities.

Metronom Eisenbahngesellschaft mbH is a German railway company that has been connecting Northern Germany since 2003. Based in Uelzen, it focuses exclusively on passenger transport, operating services from Hamburg to Bremen, Lüneburg, Uelzen, Hanover, and Göttingen. The company also runs services under the brand Enno from Wolfsburg to Hanover and Hildesheim. Metronom is partly state-owned, with its trains, which can reach speeds of up to 160 km/h, being rented from the state transport company Landesnahverkehrsgesellschaft Niedersachsen mbH (LNVG). They are known for their yellow and blue double-decker trains, offering amenities like extra legroom and refreshments.