Those who are interested in greater detail need to read some of the books that have been published on the subject and these are available from the Rolls-Royce Enthusiasts Club or the Bentley Drivers Club.
The RREC is a large club with sections all over the country that organise regular events.
The Bentley Drivers Club is smaller and may mean travelling further, but both clubs are extremely hospitable and friendly and give so much help, it really does make sense to join.
In the US there is an RROC and there’s a Phantom III Technical Society and in Australia there is an RROC. Unlike the RREC much of their sites are open to non-members and well worth a visit.