Formula One’s governing body has reached a compromise with manufacturers that changes the way the compression ratio will be measured midway through this season and in the 2027 season.

It’s just two weeks until F1 gets underway in Australia, and teams are currently in Bahrain, midway through their third and final preseason test. The 2026 season promises to be wildly different from those of the past few years, with all-new cars, engines, hybrid systems, and sustainable fuels entering the mix and shaking up the established order.

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

A new engine test will be introduced after the seventh race of the 2026 Formula 1 season following a power-unit dispute over the winter; watch every session of the season-opening Australian Grand Prix from this Friday,

Formula 1's governing body, the FIA, has announced a resolution to the sport's regulatory row over engine compression ratios, with a tweak to the regulations set for June 1 and a further change in 2027.

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

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

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 used by the works team, McLaren, Williams, and Alpine.

Honda is feeling the impact of lost

Toto Wolff to the upcoming e-vote on Mercedes' controversial new engine, which has already been widely criticised by the likes of Max Verstappen

After watching the early running at Barcelona, McLaren CEO Zak Brown believes the same four teams will stay ahead of the pack under F1’s 2026 regulations. Formula 1 has entered a new era in 2026 with the introduction of new engine, aero, chassis and tyre ...