From Autoweek

The gap between diesel and gasoline-powered Le Mans prototypes has been narrowed for next season. The Automobile Club de l’Ouest (organizer of the 24 Hours of Le Mans) handed the gas cars a small power advantage and at the same time reduced the minimum weight of all LMP1 cars, a move that appears intended to handicap diesel machinery.

The gas cars will receive a 3 percent increase in air-restrictor diameter, which roughly equates to a 3 percent power hike. The reduction of the minimum weight to 900 kg (down from 925 kg) could actually hurt the diesels further, because they may not be able to get down to that weight due to their engines’ construction. Both the diesel and gasoline camps hit out at the changes.