Mercedes F1 engine controversy explained: The compression ratio loophole

Mercedes AMG has been at the centre of F1's latest controversy surrounding engine compression ratios and a loosely worded loophole.
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Ferrari rules out Australian GP protest as Mercedes engine saga nears boiling point

Ferrari wants clarity regarding the Mercedes engine compression ratio saga, with an Australian GP protest ruled out.

Hiding pace? Too slow? What pre-season testing told us

BBC Sport F1 correspondent Andrew Benson assesses what we learnt - and what we didn't - from the first pre-season test in ...

Mercedes F1 Engines Under Scrutiny As Rivals Line Up Against Compression Trick

Formula 1 teams are testing in Bahrain this week, but a storm is brewing in the background that might turn the season on its head. A rule change could be introduced to rein in the Mercedes power units ...

Why Mercedes’ engine loophole dispute suddenly has eight F1 cars at risk

F1’s 2026 rules set a 16:1 compression ratio limit for engine cylinders. This caps how much the engine can squeeze fuel ...

Lewis Hamilton Pushes FIA as Mercedes Compression Ratio Whispers Grow

Lewis Hamilton addressed rumors of a Mercedes compression ratio advantage after Day 1 of Bahrain testing, calling for a level ...

Lewis Hamilton Questions FIA on Mercedes' Potential Technical Advantage After Bahrain Testing

Lewis Hamilton addressed rumors of a Mercedes compression ratio advantage after Day 1 of Bahrain testing, calling for a level ...
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Mercedes F1 2026 compression ratio debate nears boiling point ahead of homologation

Mercedes could come out on the losing side of a critical vote regarding the engine regulations as other power manufacturers ...

Four Spark Plugs, Eight Pistons, One Stroke: How The INNengine E-REX Promises To Be Different

The INNengine e-Rex is described as a one-stroke engine, though it actually has two strokes. But it's not dirty like traditional two-strokes.