A political firestorm has been brewing in Formula 1 in recent weeks and months over whether engine manufacturers have found a loophole in the new 2026 technical regulations.

Ferrari and other rivals are pushing the FIA to ban Mercedes' engine compression loophole before the 2026 F1 season opener in Australia.

The organization's announcement could finally bring a huge contention point regarding the 2026 regulations to a close if the rule change goes ahead - and potentially hurt Mercedes.

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All the times from the AM session in Bahrain ...

Rivals have alleged that Mercedes, which supplies four teams including champion McLaren, had exploited a grey area involving compression ratios and thermal expansion of engine components to gain perfo ...

Formula 1s engine dispute will be resolved before the season-opening Australian Grand Prix after talks were held in Bahrain during testing; watch the second day of the final week of testing on ...

Lewis Hamilton addressed rumors of a Mercedes compression ratio advantage after Day 1 of Bahrain testing, calling for a level ...

A technical loophole involving thermal expansion has triggered accusations, secret letters to the FIA, and a war of words between teams over who'll dominate the 2026 F1 season ...

There has been plenty of FIA controversy before the 2026 season has even begun ...

Williams team boss James Vowles has emerged as Mercedes’ most vocal defender as controversy swirls around the manufacturer’s ...

Mercedes AMG has been at the centre of F1's latest controversy surrounding engine compression ratios and a loosely worded loophole.