skip to content

For enthusiasts and owners of all Siddeley motor vehicles across the World

Latest News: 28/09/2016 - Bruntingthorpe Airfield for Central Area

Welcome to the Armstrong Siddeley Owners Club

Car Of The Month

1935 20hp saloon BYL 400


This 20hp saloon was bought new in 1935 by two spinster sisters who adopted a 3 year old little girl named Bridget. Bridget grew up with the car all through her early life and had fond memories of outings in it. When the sisters died the car was bequeathed to Bridget and her farmer husband. The car was lovingly called Old Bill but regrettably it had been laid up for a number of years and despite Bridget's desire to have it restored and have a ride in it to bring back her childhood memories, this never happened. The car passed through a further two farmer owners in Gloucestershire but neither could find the time to restore it and it remained in store in various chicken sheds and barns. Finally Old Bill was put up for sale and purchased by an enthusiastic club member who has spent many hours bringing it back to its former glory and it was shown for its first post restoration appearance at this years National rally. What a pity that Bridget is no longer with us to see how great the car looks now and have a ride in it.

The Club

The club aims to make owning or being interested in Armstrong Siddeley Motors’ products, social and engineering history a more enjoyable and rewarding experience. It does this by providing:

Social eventsOctSphinx

Including car rallies, visits to places of interest and social gatherings. Our flagship event is our annual National Rally & Family Weekend each July. Local area representatives support our UK events. Our members in The Netherlands and Germany regularly organise events in their countries. Our sister clubs, the Armstrong Siddeley Car Club of Australia and the Armstrong Siddeley Car Club of New Zealand, run full programs of events in their countries and are always pleased to see ASOC members attending

Club Magazine

We publish 11 magazines a year, in full colour, known as the Sphinx. These are sent out every month except January by post to all members. A variety of articles are included plus classified adds for members free of charge and commercial advertisements from relevant suppliers. To read the current edition of Sphinx, club members can click on 'Members Home' in the "Your Account" box on this page and then select

Sphinx from the "Downloads" box and happy reading.

Spare Parts

Photo of the StoresWe hold the most extensive range of spare parts for Armstrong Siddeley vehicles in the world, having bought the entire stock of the original company. We have an extensive re-manufacturing programme in conjunction with our sister clubs sourcing new stock where available and commissioning refurbishment of items as required in addition to stocking a large quantity of original factory stock and used parts. From time to time the Stores also has knowledge of complete cars for sale as restoration projects. Our stores are located near Bradford-on-Avon and is open every Monday and Tuesday with a full-time stores manager in attendance. For convenience orders can be placed by phone or email and are dispatched promptly.

Technical expertise and supportInspecting the engine

We hold extensive records of Armstrong Siddeley cars, including build records and parts technical drawings, in addition to a library of general Armstrong Siddeley literature. We also provide model specialist technical helplines for virtually all models to help ensure your car runs smoothly or to provide support for your restoration project.

Car database

Our Membership Secretary holds extensive records of individual Armstrong Siddeley cars and can assist members in tracing the history of their car or in securing its original registration. Information on original specification, delivery date etc. is also frequently available.

MerchandisingASOC umbrellas

The club has extensive merchandise including clothing, literature, badges, and accessories. These are dispatched to order by post.





Armstrong Siddeley and its associated logos are the registered trademarks of the Armstrong Siddeley Owners Club Ltd.