 Even with some factory support and proven Le Mans cars, most teams struggled to survive the 1000 kilometer race distances.The first two races of the 2006 season were won by a Hitotsuyama Ferrari 550 Maranello in the GT1 class, while the two proper LMP1s failed to finish.It was not until the final race of 2006 that Mugen's LMP managed to earn an overall victory.