Not sure if this has already been posted but:-
I read this in Classic Sportscar this month,
In Celebration of the 100 years of the ACO this years Le Mans 24 hours will host two historic support races.
There will be two 40 minute ACO Centenary Races on the 17th of June, the first running pre-war Le Mans cars, the second post WWII racers upto 1954.
Both will be organised by Duncan Wiltshire's Motor Racing Legends group. (
www.motorracinglegends.com)