The coaches are all variants of the type Talgo III RD. These coaches (RT), built in 1968, were deployed until the end of 2010. A generator car, supplying power for the train's electrical system, is located at both ends of the carriages. These generator cars also provide the coupling to the locomotive because the Talgo coupling between the carriages is not compatible with other railway stock. One generator car, the RT 212, houses the train chief's office, while the other, the RT 211, is provided with a luggage compartment. The basic composition of the train consisted, in between the two generator cars, of nine carriages RT 201, one bar/kitchen car RT 206 and two dining cars RT 210.TEE Züge in der Schweiz, p. 127. The RT 206 was situated approximately in the middle of the train, flanked by an RT 210 on both sides; the RT 211 formed the Spanish side and the RT 212 the Swiss side of the train. In case of heavy traffic, up to seven RT 201 could be added, so a train of 21 carriages, each 11.5 m long, could be formed. After the introduction of the RT 202 second-class carriages in 1982, which were conveyed between the RT 206 and RT 212, the RT 210 on that side of the RT 206 was removed.
