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

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

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

The compression ratio battle is reaching crunch time.

Formula One's governing body and manufacturers have agreed to change how the compression ratio of engines is measured. The new rules, coming into effect mid-season and in 2027, aim to prevent teams ...

Some rival teams have suggested Mercedes found a way for components to behave differently when they heat up during use. To address that, the compression ratio will be controlled in both hot and cold c ...