Two F1 manufacturers found guilty of breaching rules as punishment handed ahead of Brazil GP

Honda and Alpine have been found guilty of breaching the FIA's engine cost cap rules with both manufacturers handed an immediate punishment.

Both Alpine and Honda submitted totals under the $95m (£74m) limit for 2023, the first year that the regulations have been in place, however, they have now accepted they breached the cost cap rules.

Honda currently supplies power units to both Red Bull and RB but will exclusively become Aston Martin's engine supplier in 2026 when the new regulations come into play.

Meanwhile, Red Bull will partner with Ford in 2026 and Alpine will stop making engines altogether and become a customer team to Mercedes if reports are to be believed.

The punishment for both manufacturers is already confirmed with Honda paying a $600,000 fine (£462,000), while Alpine's fine amounts to $400,000 (£308,000).

This comes after both manufacturers settled for a so-called 'Accepted Breach Agreement with the FIA.'

The FIA's report concluded Honda Racing Corporation (HRC) failed to file accurate reporting documentation, as its cost calculations included incorrectly excluded or adjusted costs.

The smaller punishment handed to Alpine was because the team delayed sending it documents and the FIA found they had "omitted relevant information".

Due to both breaches being relatively small and not committed in order to gain a competitive advantage, there will be no more serious punishment.

Alpine F1- Getty

However, both Honda and Alpine will also be required to pay any administrative costs spent by the FIA's Cost Cap Administration investigating their breaches.

An FIA statement read: "The Cost Cap Administration recognised that both PUMs [power unit manufacturers] have acted cooperatively and in good faith throughout the review process and have sought to provide additional information and evidence when requested in a timely manner.

"There is no accusation or evidence that either Alpine or HRC has sought or obtained any undue advantage as a result of the breach."