Renault cannot approve of Liberty Media’s vision for the 2021 engine formula until other aspects of the future are also clear.

That is the claim of Cyril Abiteboul, the Renault team boss who said he joins Mercedes and Ferrari in currently opposing the plan for substantially different engines.

“What we have been presented with is a new engine,” he told Auto Motor und Sport.

“That means a new development, a new project, probably more people, more investment.

“The second problem is that we don’t know what formula one will look like in 2021.

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