Simpler, cheaper hybrid V8s proposed for next F1 rules

The fundamental framework of the proposal for the new engine's architecture is said to be basically acceptable to all the manufacturers.

However, the details around how the rules operate will need discussion.

The document outlines two possible ways forward for the new rule set.

One is aimed at minimising necessary adaptation - for example, a 2.1-litre V8 could be produced by simply adding two cylinders to the current 1.6-litre blocks and reducing the size of the turbo and MGU-K (hybrid motor).

The other, more controversial, is to have an external manufacturer design and supply a baseline power-unit with a high degree of standardisation, on to which manufacturers could add a degree of customisation.

However, insiders say the manufacturers are all aligned on wanting to design and build their own power-units and for engines to remain a performance differentiator.

The companies who currently supply engines to F1 teams are Mercedes, Ferrari, Audi, Honda and Red Bull. Cadillac, which entered F1 this year with its own team, is planning to produce an engine to the new rules.

There are two further arguments to steer away from the standardisation route:

The first is that the reasons for it - to safeguard against manufacturers leaving the sport - is irrelevant as all six will be committed under the new rule set.

The second is that the standardisation of electronics control units this season has led to a series of problems, such as at the start of the Bahrain Grand Prix in Malaysia when cars were restricted to not much more than walking pace because of a software bug.