During production some E 10 units were equipped with newly developed Henschel-made bogies and transmissions fit for speeds up to 160 km/h, and starting in 1962-63 they pulled long-distance express trains such as the "Rheingold", and were classified as class E 10.12 (and from 1968 designated as class 112). In addition these locomotives introduced the more aerodynamic superstructure (the "crease", or "Bügelfalte"), which was used for all new units of the class E 10, starting with E 10 288. In order to differentiate these units from the "normal" E 10s, a "1" (indicating a sub-class) was placed in front of the running number. In this way the E 10 1265-1270 were established, which became the eponym for the class description of E 10.12. In 1963-64 came E 10 1308-1312, again with Henschel-made high-speed bogies, primarily for the "Rheinpfeil".