New Formula 1 engine manufacturers will receive technical support from current suppliers if requested, under new rules which will be part of the 2021 package, Ross Brawn has confirmed.
F1 had proposed a completely new engine to form part of the major 2021 rules overhaul, but a push from the current manufacturers, Mercedes, Ferrari, Renault and Honda, to retain the current technology, means the power unit will now remain largely unchanged.
As a compromise, Brawn said an agreement had been reached whereby current manufacturers will be forced to offer technical support should a new manufacturer show interest in becoming involved in F1.
"The drawbridge has been pulled up and the existing suppliers don't want anyone else to come in," Brawn told the official F1 website.
"We have found a compromise. There are regulations coming out which would mean new entrants will get support from existing entrants. There will be components and technology which will have to be shared if it is requested.
"There has been a recognition from the existing manufacturers that they can't shut the door behind them.
"If we start to get serious interest from another manufacturer or supplier, they have to cooperate to find ways of helping that manufacturer come into F1."
Although the hybrid-based V6 will remain largely unchanged, Brawn revealed there had been some progress which will put more focus on the driver.
"It is not quite such a radical change that we were proposing, but still quite a good step in the right direction and there are some nice changes to the way the driver has to manage the engine, which I think goes a long way in the sporting direction."
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