It was run by the Sports Car Endurance Race Operation (SERO) sanctioning body and ran under the rules laid out by the Automobile Club de l'Ouest (ACO).
However, unlike the two other Le Mans-based series, the JLMC allowed cars which did not meet ACO guidelines in an attempt to increase the number of entrants.
The ACO planned to also grant automatic entries to the 24 Hours of Le Mans for the teams that win the season championships in each class.
Mugen Motorsports backed an LMP1 entry using one of their engines, while Hitotsuyama Racing attempted to increase field size by entering cars in two of the four classes.
During that 2007 season, SERO announced that they were relinquishing control of the series due to their failure to promote it and increase not only grid size, but also fan viewership.
The initial 2009 season comprised at least four three-hour races: two at Okayama International Circuit on October 30–November 1,[1] and the other two at Shanghai on November 7–8,[2] which was later cancelled due to economic reasons.