FIA Proposes Mid-Season Engine Rule Change Targeting Potential Loophole
The FIA has submitted a proposal to amend the 2026 engine regulations mid-season, specifically targeting how compression ratios are measured at operating temperatures. A supermajority vote is needed for the change, which could be implemented from August, amid concerns one manufacturer may have exploited a loophole for a competitive advantage.
The FIA has tabled a mid-season rule change to its 2026 power unit regulations, aiming to close a potential technical loophole related to engine compression ratios at high temperatures. A vote requiring a supermajority will be held before the season-opening Australian Grand Prix, with the change potentially taking effect from August. The proposal follows discussions among power unit manufacturers, with Mercedes believed to be the team most affected by the clarified rule.