for medium-distance services along its high-speed lines, renfe ordered a non-tilting variant of the pendolino, based on the etr 480, in 2001. the 20 four-car trains with a service top speed of 250 km/h were built jointly by alstom and caf and delivered as the renfe class 104. renfe deployed them for the new avant services along the madrid-seville high-speed line from 29 december 2004.