Every car engine has quite a few details, ranging from cylinder count to compression ratios. How does changing the compression ratio affect the engine?

After weeks of speculation, the next step in the ongoing power unit compression ratio saga has been decided. On Wednesday, the FIA confirmed details of a new compression ratio measurement technique ...

David Coulthard has criticised the FIA’s rule-making after claims that Mercedes exploited a 2026 compression ratio loophole ...

George Russell stormed to victory with Mercedes in the first race of 2026 ...

Mercedes will not challenge the outcome as the FIA’s compression ratio e-vote reaches its ...

At first glance, the concept of engine compression is simple enough:It's the ratio of the volume of the combustion chamber and bore when thepiston is at bottom dead center (BDC) versus when it is at ...

We all know the age-old maxim, "There's no replacement for displacement." It's the truth. That's why so many sanctioning bodies use displacement and compression rules to limit engine power. Of course, ...

The compression ratio battle is reaching crunch time.