F1 engine changes as 2027 and 2026 adjustments announced – roundup

Jamie Woodhouse 08 May 2026 9:00 PM

A look from the rear of the grid at the 2026 Miami Grand Prix start

Important power unit changes for 2026 and 2027 have been announced

Significant changes have been unveiled in regards to the F1 power units, both for the current season, and beyond into F1 2027.

Next year, the electric/internal combustion power ratios are to be tweaked, but before that, the FIA has updated its system for helping struggling manufacturers. All of this and more, as we take a look back at Friday’s major F1 news headlines.

F1 electric/ICE split updated for 2027

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The FIA has revealed that a change to the power unit regulations has been agreed for F1 2027.

An increase in internal combustion engine power is coming.

FIA expands ADUO safety net

Before we get to 2027, the ADUO [Additional Development and Upgrade Opportunities] process has been updated, in light of the effect of the cancelled Bahrain and Saudi Arabian Grands Prix.

Designed to help power unit manufacturers which have fallen behind the leading example, the update means that a new first checkpoint has been determined.

Aston Martin AMR26 Sakura stay explained

One of the manufacturers to benefit from the ADUO system will be Honda.

After a harrowing start to the Aston Martin and Honda partnership, an AMR26 car was left behind in Japan for Honda testing.

The decision appears to have paid off.

Key Saudi Arabian GP decision looms

F1 2026 calendar efforts are in ‘overtime’, as a decision on reinstating the Saudi Arabian GP moves closer into view.

The Bahrain, Las Vegas and Abu Dhabi GPs could serve as prominent puzzle pieces in the calendar scenarios being discussed.

Should Ferrari be worried by Miami GP upgrade results?

The answer is yes, according to Karun Chandhok.

Ferrari introduced 11 upgrades – the most of any team – for its SF-26 challenger in Miami.

It was a package which failed to rattle McLaren or Mercedes, so Chandhok has been informed.

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