You might have heard about high compression ratios, but what exactly are they, and what kind of effect do they have on an ...

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

Another term which has come up a lot in the build-up to the 2026 season is ‘compression ratio’. This is the ratio between the volume of the engine cylinder when the piston is at the bottom of its ...

Motorsport Week Deputy Editor James Phillips discusses the forthcoming summertime Formula 1 rule tweak that could hurt ...

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

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

The FIA has confirmed changes to the Formula 1 engine compression ratio regulations, with Mercedes powered cars set to suffer ...

A decision has been reached on the geometric compression ratios ...

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

The compression ratio controversy will be addressed with a new test, but not until August.

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