The Trans Europ Express, or Trans-Europe Express (TEE), was an international first-class railway service in western and central Europe that was founded in 1957 and ceased in 1995. At the height of its operations, in 1974, the TEE network comprised 45 trains, connecting 130 different cities, from Spain in the west to Austria in the east, and from Denmark to Southern Italy.
Swiss TEE trainset capable of operating at four different voltages
German DB Class VT 11.5 diesel trainset that was used in TEE service until 1972 at München Hauptbahnhof in 1970
An SNCF CC 40100 with the Brussels–Paris L'Oiseau Bleu TEE in 1979. By the 1970s most TEEs were locomotive-hauled, rather than self-propelled trainsets.
A diesel multiple unit or DMU is a multiple-unit train powered by on-board diesel engines. A DMU requires no separate locomotive, as the engines are incorporated into one or more of the carriages. Diesel-powered single-unit railcars are also generally classed as DMUs. Diesel-powered units may be further classified by their transmission type: diesel–mechanical DMMU, diesel–hydraulic DHMU, or diesel–electric DEMU.
A JNR Class KiHa40 in use for Erimo Express service, Hokkaido, Japan
An IE 29000 Class diesel multiple unit on a western commuter service at Dublin Connolly Rail station, Ireland
A British Rail Class 185 diesel hydraulic multiple unit operated by TransPennine Express at Manchester Piccadilly station, United Kingdom
One of the underfloor diesel engines with hydraulic transmission under a car of JR Shikoku 2700 series DMU