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

FIA announces updated 2026 regulations, including new engine testing after Mercedes PU scrutiny, plus a series of rule tweaks ahead of the season.

Mercedes' rivals succeed in securing a rule change following a pre-season technical row over engine performance.

A political firestorm has been brewing in Formula 1 in recent weeks and months over whether engine manufacturers have found a loophole in the new 2026 technical regulations. Mercedes and Red Bull may ...

The FIA has updated the 2026 F1 engine rules, changing how compression ratios are measured to prevent loopholes.

Formula 1 bosses have confirmed a rule change to close a loophole Mercedes is believed to have exploited in the engine ...

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 ...

Preseason testing for the new Formula 1 season ends in Bahrain, with teams not putting their cars on a track until the first practice session of the Australian Grand Prix weekend on March 6.