A potential loophole in the new F1 regulations for 2026 has been closed by the FIA.
The regulation changes for 2026 are among the biggest in the sport's history, with a significant focus on aerodynamics and power units.
Among the changes are a new active aerodynamics system, which allows drivers to deploy additional aero at the front and rear of the car during the lap.
A more simple floor design has been introduced, with the Venturi tunnels of previous years now no more.
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Power units, meanwhile, have a 300 per cent increase in battery power, which is split between internal combustion and electric power.
Cars will also run advanced sustainable fuels.
The aim of the new regulations, alongside the sustainability factor, is to reduce the amount of downforce, make cars harder to control, and to promote closer racing than in recent years.
As per The Race's Jon Noble, the FIA have closed down a potential loophole surrounding engine regulations amid speculation that manufacturers had been attempting to exploit it.
It relates to the fuel-flow meter, with a previous maximum mass flow of 100kg/h being replaced by a fuel energy flow of limit of 3000MJ/h for the 2026 season.
Essentially, the fuel-flow meter delivers key data to the FIA, who can then check that each car has complied with their regulations.
But instead of there being two meters - one for the FIA and another for the teams - there is now a single unit to be implemented within each car's design.
It is claimed that the issue 'appears to revolve around' whether teams could change the temperature of the meter, which could in turn affect the accuracy of readings that the FIA receive.
After the most recent FIA World Motor Sport Council meeting in early December, an update to the FIA's Sporting Regulations now reads: "Any device, system or procedure, the purpose of which is to change the temperature of the fuel-flow meter, is forbidden."
There will be five power unit manufacturers in Formula 1 next season, with newcomers Audi and Ford joining Ferrari and Mercedes.
Honda also return, having held a technical partnership with Red Bull to operate Red Bull Powertrains since 2022.
Ryan Smart