zentralbahn A 211-6 in an Golden Pass Panoramic Express train Interlaken - Luzern. They belong to the SIG EW I series, built from 1966 to 1971 in aluminium alloy. In the 1990s they were modernized and received the characteristic wide panoramic windows. Two trainsets are painted in Golden Pass colours and are equipped with panorama and restaurant cars, the regular first and second class cars are the same as those in the zebra-painted IR trainsets. Brünig-Hasliberg, 2011-09-30.