The FIA is set to freeze development on internal combustion engines in the World Rally Championship for five years, in order to cut costs.
The move is set to be ratified at a WRC Commission meeting on Friday.
“[The engine freeze] stops the development cost,” FIA rally director, Yves Matton, told DirtFish.
“I would say it’s a compromise we were able to find with the manufacturers concerning the engine.
“Even if it’s impossible to make a global agreement on each single detail of the technical regulations with the three manufacturers, you need some common agreement and we were able to achieve this.
“We have an engine that will be more cost-effective if you accumulate the development and running costs.”
There had been talk of switching to the engines currently being used in the Rally 2 class (formerly R5), but a unanimous agreement couldn't be reached with teams.
Engine specification will be fixed at the end of March next year, and won't be changed until the end of the 2026 season.
A hybrid until will be fitted alongside the current engine when those rules are introduced.
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