The blown diffuser saga could be ended tomorrow if all 12 teams sign a letter agreeing to return to the rules as they were in Valencia.
If agreement is reached then we will revert to the old interpretation of the rules for Germany, and the 10% throttle limit for Silverstone will have been a one-off.
In today’s hastily arranged meeting of the Technical Working Group all the teams bar Sauber and Williams provisionally agreed to the proposal. FOTA has taken on the task of composing the letter and getting it signed by all 12 teams, with Williams and Sauber expected to agree, having mulled over the consequences.
As suggested here earlier, a key part of the arrangement is that all the teams will have to agree not to protest on the matter in the future. It was the threat of protests that led to the clampdown in the first place.
In effect the FIA is acknowledging that despite its best efforts, it has proved impossible to come up with a solution to the problem of controlling blown diffusers that keeps everybody happy.
The problem goes away next year because exhausts will have to be directed away from the diffuser, so it will be impossible for anyone to gain any benefits.
Sam Michael of Williams told this blog that the other teams now have a better understanding of why there were concessions related to the Renault and Mercedes engines: “One thing we did get out of this morning’s meeting was a lot more clarity on what the Renault and Mercedes issues were, which we didn’t really know about. So that was made clear in the meeting – not 100%, but we have a better idea.”