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, ...

Ferrari has confirmed that clarity regarding the engine compression ratio saga – which has Mercedes at the centre of it – is what the Scuderia is chasing. Amid a series of meetings, and the idea to ...

Aston Martin chief Adrian Newey says only one manufacturer is not aligned with the rest of the Formula 1 grid in relation to the ongoing debate over engine compression ratios. Controversy has dogged ...

Karun Chandhok says Mercedes is playing a “clever game” after Toto Wolff talked up the Red Bull engine ahead of a potential crucial vote on Mercedes’ power unit. The F1 2026 pre-season began on a ...

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

The FIA have proposed a mid-season rule change to its engine regulations with a vote set to take place before the Australian Grand Prix. The build-up to the new 2026 season, which are the biggest in ...

Mercedes team principal Toto Wolff has conceded the German manufacturer would be "screwed" if Formula 1 and the FIA shared the opinion of rival power unit suppliers in the ongoing engine compression ...