In this traditionally awfully translated PR piece it says that there are 61 cars entered for the Legends race and "some 60" for the AMR Festival.
http://www.24h-lemans.com/en/news/20...746_19122.html
Also ACO proudly saying there are ten different chassis in LMP2. Not sure if that's great marketing strategy knowing it's all likely gonna be spec-ified in couple of years time. Also in reality it's only 8 chassis as they've counted the fake Oreca-Courage-"Alpine" and EVO version of Oak-Pescarolo-"Morgan(-SARD)" as separate entities