In December, it emerged that Mercedes had found a possible loophole in the rules that could lead to a performance advantage.

Formula 1 bosses are moving towards a rule change that would close a loophole rivals believe Mercedes have exploited in the sport's new engine rules.

FIA announces updated 2026 regulations, including new engine testing after Mercedes PU scrutiny, plus a series of rule tweaks ...

Formula One ’s governing body has reached a compromise with manufacturers that changes the way the compression ratio will be ...

Formula 1's governing body, the FIA, has announced a resolution to the sport's regulatory row over engine compression ratios, ...

Mercedes' rivals succeed in securing a rule change following a pre-season technical row over engine performance.

Drivers are always tight-lipped about how good a car is in testing, but in retrospect admit they recognise a poor machine ...

The FIA has updated the 2026 F1 engine rules, changing how compression ratios are measured to prevent loopholes.

A revised test at 130°C aims to end off-season speculation — but could shift the debate into 2027.

Formula 1s engine dispute will be resolved before the season-opening Australian Grand Prix after talks were held in Bahrain ...