This comprehensive reference work meticulously documents every automobile that participated in the 24 Hours of Le Mans endurance race from 1949 to 2009. Authored by a team of automotive historians and enthusiasts, the collection draws upon extensive archival records and the unique N Collection to present a definitive catalog of these racing machines. It aims to provide an unparalleled resource for enthusiasts and historians by detailing each car's specifications, drivers, entrants, and performance.

This trilogy is recognized as an exhaustive and unparalleled resource for motorsport historians and collectors, offering a level of detail on Le Mans participants previously unavailable in a single collection. The meticulous cataloging of over 3,000 cars, complete with photographic documentation and performance data, establishes it as a definitive reference work. Its scope ensures that enthusiasts can compare and contrast the evolution of racing technology and the diverse entries across six decades of the iconic race.