Williams immediately declared their intention to challenge the verdict, and whilst they remain convinced they have the necessary evidence to successfully contest the ruling, the team have decided the matter is not worth pursuing given the legal costs involved and the fact that it does not affect their place in the title standings.
In a statement, Williams confirmed that they "will not formally appeal the decision as a hearing date is unlikely to be available until after the end of the season impacting a time when the team wishes to turn its attention to its 2016 campaign.
“Given the financial climate of the sport, and the fact that the decision does not impact the team’s constructors’ championship position, it has been decided that this would be an unnecessary cost to endure.”
Massa’s team mate Valtteri Bottas finished fifth in Brazil, ensuring Williams of third place behind Mercedes and Ferrari in the 2015 table.
