The Rebellion R-One is a sports prototype racing car built by French constructor Oreca on behalf of Swiss-based team Rebellion Racing. It is designed to meet the 2014 LMP1-L regulations for Le Mans Prototypes in the FIA World Endurance Championship as well as at the 24 Hours of Le Mans, and replaces the Lola B12/60 chassis. The first two R-Ones debuted at the 2014 6 Hours of Spa-Francorchamps, round two of the FIA World Endurance Championship. The Rebellion R-One shares the same monocoque as the Oreca 05, and the Oreca 07.