簡單說就是目前還沒有新的 PU 製造商明確表示要參與 F1，所以現有車隊/製造商都傾向
不要進行大變更，也希望保留之前說要被取消的 MGU-H
因為若沒有新 PU 製造商參與，那根本沒必要再多花成本來重新設計 PU，維持現有架構
，再針對聲浪、動力等方面進行改善即可。
原文連結：https://goo.gl/YpGmLE
標題：
F1 manufacturers eye U-turn on 2021 engine rules
原文：
Discussions over the 2021 Formula 1 engine regulations are in limbo after the
current manufacturers questioned the package that has been championed by Liber
ty Media and the FIA.
The basic parameters of the simplified regulations, including dropping the MGU
-H, were jointly announced by the two organisations as long ago as October.
Discussions have continued since, and after some initial reservations the manu
facturers had indicated that they had accepted the loss of the MGU-H. The FIA
hoped to produce a final set of regulations at the end of June.
However, at the last minute and following discussions at last week's Strategy
Group meeting, the manufacturers have kicked back, and suggested that they wan
t to keep the current hardware package after all, including the MGU-H.
The main impetus for their position is the fact that no new entrants have comm
itted to coming into F1 in 2021, which was one of the main justifications for
the proposed changes.
Porsche has been involved in all the discussions over shaping the 2021 rules
– just as Volkswagen was when the current V6 hybrid regs were formulated.
However, it has not yet made a decision on launching an F1 programme, at least
in part because of the ongoing emission scandal surrounding the wider VW Grou
p.
Aston Martin, which has indicated an interest in an F1 project, is also sittin
g on the fence.
In addition, Red Bull's recently-announced works deal with Honda has changed t
he landscape, as it clearly puts one of the sport's biggest players in a stron
ger position with a potentially competitive engine, while also making Aston's
involvement less likely.
The consensus among the manufacturers is that they see no reason to be forced
into making a huge investment in revising their hardware when there are no new
comers on the horizon.
However, they are willing to discuss compromises in areas such as improving no
ise, adjusting fuel usage to generate more power, and introducing some standar
d parts.
"It's still very much out for discussion," said Mercedes boss Toto Wolff. "We
had a presentation that would have meant a redesign of the engine.
"All four currently in F1 engaged OEMs would have given their preference, with
an understanding from our side that we maybe need a bit more noise, and a dis
cussion around fuel consumption that's important.
"But just for the benefit of redesigning an engine without anybody else enteri
ng doesn't make a lot of sense.
"So if somebody would commit to come into F1 in the way that we have committed
ourselves, all four of us have committed ourselves, go through the lows and h
ighs, the expenses and investment that it needs, then let's discuss engine reg
ulations. But if nobody's inside, it's an academic discussion."
Christian Horner also indicated that the lack of new entrants had become an is
sue.
In addition, Honda is keen to keep the MGU-H, and thus Red Bull is backing tha
t position.
"I think ultimately the governing body and the commercial rights holder have g
ot to do what they believe is right for the sport," said Horner.
"It doesn't look like there's anybody new coming in, so really I think it's do
wn to the FIA and Liberty to decide, what do they want?"
Renault F1 boss Cyril Abiteboul made it clear that the French manufacturer doe
s not want to be forced into an expensive new development race.
"I think we should always give priority to stability," he told Motorsport.com.
"I think it's the baseline for everything, particularly in F1, which is such
a competitive and expensive environment.
"That's true for the engines, that's true for everything else, for aerodynamic
development, and so forth.
"I think we underestimate the benefit of stability for the cost for everyone,
for the manufacturers, also for the teams, but also for the show, because we w
ant close racing, close action."