Background
Between the World Wars the social upheaval caused by the Great War was manifesting itself in unfathomable ways. In Rolls-Royce’s case for example, more and more of the company’s traditional customers were choosing to forgo the services of their chauffeurs and drive themselves. Perhaps it was a “carpe diem” effect bought on by the loss and sorrow of the great conflict. This societal change was happening in the context of world economies that had been hobbled by war-time upheavals. In the face of these converging factors Henry Royce designed a “small Rolls-Royce, the “Twenty,” which was released in 1922 and became an entry level companion to the 40/50 Silver Ghost.
The Twenty continued the tradition of Rolls-Royce supplying just the chassis and running gear leaving customers to appoint a coachbuilder of their own choosing. The Twenty’s 3.1L straight-six was designed to easily achieve 60 mph as long as the factory’s recommendation for the maximum weight of the coach-built body was not exceeded. Customers may have now been driving themselves more often, but they hadn’t taken leave of their senses completely! And so, it was common for weighty and over-large bodies to still be specified. Performance inevitably suffered and so, some thought, did the company’s reputation by association.
The impetus behind 1929’s new 20/25, then, was to restore the equilibrium somewhat. The 20/25 nomenclature indicated that the chassis from the Twenty was retained but that an enlarged, more powerful engine was now fitted, with a taxable (RAC) horsepower of around 25 hp. A modest boring-out increased the Twenty’s engine’s capacity from 3,128 to 3,675cc and raising the RAC rating to 25.8 hp from 20. This decisively did the trick with contemporary road tests clocking a, still “over bodied,” 20/25 at over 75 mph.
The 20/25 went on to be seen by many as responsible keeping the iconic Rolls-Royce marque afloat during the rigours of the 1930’s financial maelstrom. By the time production ended in 1935 over 3,800 had been built and sold.








