sentences:  Instead, the race would be 10 hours or , whichever came first.The series would become an experiment for the ACO, in which if enough teams showed interest in Petit Le Mans, the ACO would look into developing a series around the same formula.In order to help drive interest, the ACO promised that the winners of Petit Le Mans would earn automatic invitations to the 24 Hours of Le Mans without having to apply or earn favor with the ACO.