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

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.

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

Formula One’s governing body, the FIA, has reached a compromise with power unit manufacturers to tighten how engine ...

The FIA has announced a mid-season rule change to close an engine compression ratio loophole, with new tests introduced from ...

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

Even before the first collective on-track Formula 1 action of 2026, there has been talk about the new engine regulations in Formula 1. More specifically, the focus is on the compression ratio of the ...

A new engine test will be introduced after the seventh race of the 2026 Formula 1 season following a power-unit dispute over the winter; watch every session of the season-opening Australian Grand Prix ...

As F1 moves ever closer to the start of the F1 2026 season, discussion remains ongoing in a number of key areas. That includes specifics relating to power unit rules, with one particular Article ...

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

A loophole, an e-vote and weeks of tension — but Coulthard says it was avoidable.