Their breakthrough came in 1974 with the album ''Autobahn'', the title track of which was a hit both in America and Europe. By this time Wolfgang Flur and Karl Bartos had joined the group and the rest of the 1970s and early 80s were a golden period for the band. | Their breakthrough came in 1974 with the album ''Autobahn'', the title track of which was a hit both in America and Europe. By this time Wolfgang Flur and Karl Bartos had joined the group and the rest of the 1970s and early 80s were a golden period for the band. |