 Petrol engined Le Mans Prototype cars received a 3% larger air restrictor to increase power output and to balance performance between petrol and diesel engines.The performance difference between the LMP1 and LMP2 classes will be increased by decreasing LMP1 class' minimum weight 900 kg, the LMP2 class' minimum weight increased to 825 kg, and a reduction in the fuel capacity of LMP2 cars from 90 litres to 80 litres.The ACO also added rules regarding the types of engines and fuels which can be used.