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

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.

The FIA has proposed a new approach to the way it tests for compression ratio limits, with Formula 1's power unit manufacturers to vote on whether to approve a mid-season change that could hamper ...

The compression ratio battle is reaching crunch time.

A simmering technical row in Formula 1 is hurtling toward a decisive moment, as the sport’s five engine manufacturers prepare to cast votes.

Mercedes boss Toto Wolff has dismissed Formula 1’s escalating compression ratio controversy as “a storm in a teacup”.

The FIA has issued a statement on the status of the compression ratio ...