Thanks to the series’ official websites where appropriate, and the following specialist sites for their hidden treasures:

We’re indebted to the following fellow petrolheads for their contribution to the site, providing hard-to-find details, whether it was a date, a name, a car or a number:

David Addison
Phil Branagan
James Butler
Richard Craill
Rene de Boer
Stuart Dent
Richard Fowler
Peter Higham
Martin Holmes
Jonathan Ingram
Matt James
Pascal Katabian
Carl McKellar
Ian Mills
Keith Oswin
Marcus Pye
Duncan Rabagliati
Martin Raines
Seth Reinhardt
Marcus Simmons
Jerry Sturman
Dave Thomas
Ian Titchmarsh
Eddie Walder
Tony Watson
Tim Whittington
Tim Wright

Special mention must go to the world’s finest motorsport publications and photographic archive for simply existing:

Autosport Magazine
Motorsport News, née Motoring News
Motorsport Magazine
LAT Photographic