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World Endurance Championship rulemakers have reserved the right to penalise LMP1 privateers if they outperform the factory Toyotas.

Le Mans organiser and WEC promoter the Automobile de l'Ouest has stated that there will be a system of penalties in place for the 2018/19 WEC season to ensure a balance between the non-hybrid privateers and the hybrid Toyota factory cars in LMP1.

The ACO has yet to fully disclose or explain the procedure, but it reflects the fact that three new cars in the Ginetta, Dallara-built BR Engineering BR1 and the Rebellion developed by ORECA are arriving in LMP1 for the superseason.

It has been reliant on data provided by the constructors in its formulation of the Equivalence of Technology designed to give non-hybrid cars lap-time parity with hybrids.

ACO sporting director Vincent Beaumesnil told Autosport: "There will be a penalty system, of which we will release details later, in case a non-hybrid car is faster than a hybrid.

"The reason for a non-hybrid going faster can only be that we have not been given the correct data [by the relevant constructor]."

"We are saying that we have given you a certain level of performance and if you are above this level, you have misled us."

He said the system was "quite clever" and "would not disrupt the racing".

The principle of the new system is laid down in the 2018/19 sporting regulations.

It states: "All competitors and manufacturers that deliberately provided misinformation, tried to influence the EoT process, or whose level of performance is higher than the expected result may be sanctioned with a penalty before, during or after a race."

The rules lay down a minimum penalty of a five-minute stop-go and state that a one-lap penalty can be awarded at the end of the race.

The regulation is primarily aimed at the opening two rounds of the superseason at Spa in May and then the Le Mans 24 Hours.

The EoT cannot be modified prior to Le Mans, after which it can be changed if necessary based on the data collected during the opening races.

It is then set in stone until after the 24 Hours the following season.

Beaumesnil stressed that the privateers would not be given any performance breaks after Spa should they prove substantially slower than the Toyota TS050 HYBRIDs.

The outright performance of the Toyota TS050 HYBRID has not been reduced on last season's levels, only its fuel allocation to reduce the length of stints between pitstops.

For the 8.47-mile Le Mans circuit the Toyota will now have a fuel allocation of 35.1kg, down from 44.1kg in 2017.

This is designed to reduce their stint length from a potential 14 laps to 11 laps, one more than the privateer cars.

The privateer's fuel allocation is 52.9kg per stint.