Ahead of the United States Grand Prix, Ferrari asked the FIA for clarification about why a Mercedes concept of holes in the wheel rims was not considered a moveable aerodynamic device – as it acted in a similar way to something Red Bull had been banned from doing in 2012.

Motorsport.com learned that the FIA looked into exactly what Mercedes was doing with its wheel rim and hubs, and found it to fully comply with the regulations.

But after Ferrari made it clear at the United States Grand Prix that it did not agree with the FIA interpretation, Mercedes elected to modify its rims to avoid any potential risks of a protest from its rival.

With ongoing uncertainty about where things stand now, F1 race director Charlie Whiting has suggested that it may be best to add the topic to the agenda

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