The 1999 Le Mans Fuji 1000 km was an endurance race backed by the Automobile Club de l'Ouest (ACO), who ran the 24 Hours of Le Mans, and the Japan Automobile Federation (JAF), who ran the JGTC race series. It was run on November 7, 1999.
Since the mid-1990s, a large number of Japanese automobile manufacturers had begun to compete at the 24 Hours of Le Mans, including Honda, Toyota, and Nissan. Japanese constructors and engine builders were also competing as well, such as Dome, Tom's, and Mugen Motorsports. The ACO therefore was interested in the idea of creating a new sportscar series in Japan similar to the one that had recently been created in the United States, the American Le Mans Series. Thus, the Fuji 1000 km would serve as a one-off experiment to see how well a series would perform in Japan in the future, similar to the one-off 1998 Petit Le Mans for the ALMS.
With an agreement between the ACO and JAF, the race was agreed to take place at Fuji Speedway, and to combine the ACO's LMP, LMGTP, GTS, and GT class with the JAF's JGTC series GT500 and GT300 classes. The addition of JGTC machinery was done not only to entice Japanese teams into possibly moving into the ACO's sportscars, but also to help fill the field and to bring a crowd. However, the race did not count as part of the JGTC season, thus a full JGTC field was not expected since the race was optional. For the ACO classes, an incentive to bring competitors not only from Japan but also internationally was added in that, like Petit Le Mans, the winners in each class would earn automatic entry to the 2000 24 Hours of Le Mans.