One stated aim of the new rules is to allow the likes of Aston Martin, Cosworth, Ilmor or others to be able to enter formula one.
But Renault boss Abiteboul doubts the plan will work.
“If the FIA and Liberty do not propose an engine that dictates standard technology or extreme restrictions in most areas, then private manufacturers cannot come,” he told Auto Motor und Sport.
“And such a business plan would only work if the manufacturers were subsidised by a sponsor or a car company,” the Frenchman added.
“But such an engine would be unattractive for car companies.
“So I ask the FIA and Liberty who they want to favour with this engine format? If it’s new car manufacturers, let’s ask them what they want,” Abiteboul said.
Mercedes Also Critical of 2021 F1 Engine Proposals
Mercedes, which is the front-runner among current engine suppliers, is already hesitating at some of the planned changes for the sport’s engine regulations, naming anxieties associated with cost, and a lack of input from engine suppliers.
“The concept sounds similar,” said Toto Wolff to Auto Motor und Sport, in reference to the regulations pitched by the sport’s management, “but it means a complete new development. That would mean that we would have to work on two engines at the same time between 2018 and 2020.”
“The doubling-up of each manufacturer’s engine programs would cause costs to soar, as suppliers would have to balance maintaining their current engine’s competitiveness through 2020, as well as giving themselves a strong foundation on which it will achieve success in 2021 and beyond.
“It is a vision and not yet a regulation that will shortly be approved and will come into force in 2021,” continued Wolff, “and it’s only their vision and not the manufacturer’s. It is important to define together what Formula 1 in 2021 represents and what attributes an engine should have.
“That must then be a target on which we all work. It is at most the starting point of a dialogue, and nothing that we have agreed to in form. Certain things are right, but not fully hit.”