Changes to compression ratio tests will be introduced in the summer after a lot of focus on Mercedes' new power unit over pre ...

From the conflicts in the Middle East already influencing a Pirelli tyre test to the end of the dispute over the engine compression ratio, here’s a look at today’s biggest F1 stories. Earlier today, ...

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

The FIA has announced a mid-season rule change to close an engine compression ratio loophole, with new tests introduced from June affecting Mercedes and all F1 manufacturers ...

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

A new engine test will be introduced after the seventh race of the 2026 Formula 1 season following a power-unit dispute over ...

The FIA has introduced a revised power unit compression measurement process ahead of the F1 2026 season beginning. A revised ...

Formula One’s governing body has reached a compromise with manufacturers that changes the way the compression ratio will be measured midway through this season and in the 2027 season ...

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A single line in the technical regulations has sparked months of debate — here’s how the compression ratio saga unfolded and what happens next.

The compression ratio controversy will be addressed with a new test, but not until August. Until then, Mercedes F1 can ruin its power unit as currently set up.