3 links
Avenger and Sunbeam Owners Club
asoc.co.uk
Contains news, events, model descriptions, picture gallery, and joining information.
Rootes Group Automobiles
team.net
History of the Rootes group, chassis numbers, bulletins, books, bibliography, and many links to other sites.
Rootes Series Light Cars
roboworld.co.uk
Details on the Humber Sceptre, Sunbeam Alpine series V, Singer Gazelle, Vogue, and Hillman Minx: Offers specifications, history, and workshop manuals.