Rolls-Royce re-emerged after World War Two with the Silver Wraith, based on the 1939 (non-Silver) Wraith model. At first, it was only available for export, Great Britain having to wait until 1948 before sales commenced. The Wraith was offered as a bare chassis only; it was up to the affluent owner to have a coachbuilder construct the body, with Mulliner outlines the most popular option. Initially, motive power was a 4257cc straight-six engine, but this rose to 4566cc in 1951 and then jumped to 4887cc in 1954 .
info from Octane