F1’s 2026 rules set a 16:1 compression ratio limit for engine cylinders. This caps how much the engine can squeeze fuel before burning it — the more you squeeze, the hotter it gets and the more power you produce, although if you try and do this too much it becomes counterproductive.

Ferrari’s engine department is staring down Formula 1’s new power-unit era with a mixture of confidence and curiosity.

As the 2026 season approaches, Formula 1 must find a way to resolve its compression ratio controversy - but every possible solution comes with a cost somebody isn't willing to pay

While engine performance across manufacturers has largely been balanced in recent years, the 2026 changes could deliver significant, potentially decisive gains. In 2014, when F1 first introduced hybrid engines, Mercedes emerged with by far the best, setting it on course for eight consecutive world championship wins through to 2021.

The first chapter in the battle between engine manufacturers played out at the Circuit de Catalunya last week as the 2026 Formula 1 season officially began. While F1 testing got underway behind closed doors,

Mercedes have riled up their rivals before F1 2026 has even begun

There is a dispute between F1s teams over a rule limiting the compression ratio in the new power units for 2026; watch the final hour of each day of the first Bahrain test live from Wednesday on Sky S

Mercedes are rumoured to have set the standard with their 2026 F1 engine, despite the fact that no actual track testing has taken place yet. From 2026, Formula 1 power units will undergo a significant transformation. The MGU-H component will be eliminated ...

Charles Leclerc believes Red Bull and Mercedes are leading Ferrari and McLaren in terms of performance ahead of the 2026 Formula 1 season. The world championship has introduced new chassis and engine regulations for the upcoming campaign, with the pecking order quite unpredictable as a consequence.

Formula 1s big four of McLaren, Mercedes, Red Bull and Ferrari appear to be at the front again, but in which order? Watch full live coverage from 7am-4pm on all three days of the final pre-season test