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

Formula 1's five power unit manufacturers are set to vote on a proposed tweak to how engine compression ratios are measured, ...

The FIA confirmed the update following discussions within the sport’s Power Unit Advisory Committee. Under the 2026 ...

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

Formula 1's five power unit manufacturers are set to vote on a proposed tweak to how engine compression ratios are measured, which could come into force over the summer break. The 2026 power unit ...

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

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

We may receive a commission on purchases made from links. While browsing auto repair and maintenance tools at your local parts store, you've likely come across compression testers like the Orion Motor ...