Compression Engine Running Test

Mercedes, F1 and engine compression ratio

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· 1d

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

Formula 1 kicked off its second preseason test of the year on Wednesday.

· 1d · on MSN

Mercedes F1 engines under scrutiny as rivals line up against compression trick

PlanetF1 on MSN · 7d

Mercedes rivals pushing for Australian GP rule change over F1 2026 engine loophole – report

· 16h

Mercedes' Antonelli fastest in Bahrain testing

After the first day of testing in Bahrain on Wednesday, Mercedes boss Toto Wolff felt Red Bull, with their new engine developed in partnership with Ford, have "set the benchmark" for the new season.

· 14h

I agree with Max Verstappen – F1 risks fans turning off with these new rules

· 1d

Lando Norris: McLaren driver says Ferrari, Red Bull are ahead of F1 world champions so far in pre-season testing

· 1d

F1 pre-season testing in Bahrain - day two

Charles Leclerc put his Ferrari top of the timesheets early doors with a 1:34.273 on the C3 compound.

· 1d

Leclerc leads Norris in 2nd day of Formula 1’s preseason testing in Bahrain

Crash · 10h

F1 2026 Bahrain Pre-Season Test 1: Final Day 3 Results

PlanetF1 on MSN

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 chase a

GPblog on MSN

'FIA to hold second meeting with technical experts over engine loophole debate'

The FIA will reportedly hold a second early-week meeting with technical experts, with the engine compression ratio debate set to be put on the table ahead of PUAC. According to The Race, the meeting is scheduled for Monday — following an initial one held on January 22 that was less about the current interpretation and more about might need to be amended for the future — with the focus now shifting to establishing a clear methodology for