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Current engines "too incredible" for Formula 1 - Andy Green

Racing Point technical director Andy Green believes the current Formula 1 engines are "too incredible" and reckons F1 could benefit from a simpler power unit

The current hybrid V6s, introduced in 2015, have been labelled as an "incredible piece of engineering" and the Mercedes powerunit became the most efficient engine ever by passing 50% thermal efficiency.

The normally-aspirated F1 engines that preceded the current formula had a reported 29% efficiency.

But Green, whose team runs Mercedes engines, feels the technology of the current power plants is too sophisticated.

"What we have now is an incredible piece of engineering in the back of the car. But it could just be too incredible," said Green.

"What we have is potentially something where the technology bar of the power unit is just way too high and I think I would like to see something that is just slightly simpler. That's my view.

"I'd never say no to more horsepower. The sport can't have enough horsepower. We need to make the cars harder to drive. More power; a simpler power unit. That's where I would be going."

Red Bull team principal Christian Horner added he would welcome a return to the high-revving engines of previous years.

But Horner admits his view might be too "romantic" as the push for greener, more efficient technology continues.

"Emotionally, a normally-aspirated, high-revving V10 or V12 engine would be a wonderful thing to have back in Formula 1, but unfortunately they're rather outdated now," said Horner.

"As Andy was saying, the technology in these engines is phenomenal.

"We've now got a period of stability with the engines until 2023 or 2024, so it's important that Formula 1 makes the right decision for the future.

"Obviously the automotive sector is moving an awful lot at the moment and what technologies are going to relevant then?

"Because when that engine comes in in 2025 that's going to have to be for a 5-10 year period, so we're actually talking up to 2035, which is a long way down the pipeline.

"The romantic in me says go back - loud, noise, high revs, normally aspirated."

Renault F1 boss Cyril Abiteboul conceded the idea of returning to normally-aspirated engines was too optimistic for F1, even though he says the highly-efficient power unit currently used is "less exciting".

"The romantic in me would say the same thing, but obviously in 2025 the world will be different," said Abiteboul.

"Clearly we need more power and sustainable power and long races, but there will be new forms of fuel coming up in the next few years, whether you are talking about more bio-fuel.

"So a different composition, or even synthesis fuel, coming from non-fossil sources, that could be attractive and that would require new development.

"So, [that is] probably the way forwards. Less exciting, obviously, than a very high-revving, normally-aspirated engine, but still the way forward if we want to be relevant, not just to car-makers, but to society."

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