This book is an essential supplement to the “Black Books” for a full understanding of single-seater racing. Formule Libre (“Free Formula”) races have generally been neglected by historians, probably because they do not conveniently fit in to modern formula “boxes”. This is despite some having entries worthy of a Formula 1 race. Many interesting cars took part in them. No history of makes like Connaught, Cooper, Maserati and ERA would be complete without including these races. This edition aims to rectify that situation. Most of these races have never previously been fully documented.