Toyota, Ferrari, Cadillac and Porsche have all had their minimum weights raised for the centrepiece round of the World Endurance Championship on 10/11 June.
The biggest weight increase is for the Toyota GR010 HYBRID Le Mans Hypercar, which won the opening three rounds of the 2023 WEC.
It has been hit with a 37kg increase, while the Porsche 963 LMDh has had its minimum weight increased by just three kilogrammes.
A change now suggests there has been a universal agreement among the participating manufacturers in Hypercar to change the BoP for Le Mans, which is celebrating its centenary this year.
They were all signatories to a new system introduced for this season that allowed only for a revision in the balance between LMH and LMDh machinery, a so-called platform change, over the first four rounds up to and including Le Mans.
Changes to the BoP for individual cars built to the two different rulesets in operation in Hypercar was then only possible after Le Mans under the agreed system.
The document that governs the BoP remains secret, which created confusion over when a platform change could come into effect.
Source: Autosport