sold its cable division to Goldman Sachs, which changed the new group's name to Prysmian. In the 1950s, Alberto Pirelli commissioned the building of a skyscraper, Pirelli Tower, in the same Milanese area that housed the very first Pirelli factory during the 19th century.

In 1974, Pirelli invented the "wide radial tyre", upon a request from the Lancia rally