Red Bull's Dr Helmut Marko is on the war path for the FIA to force Pirelli out of Formula One as he is still not happy with the "minor tweak" that has been made by Pirelli.
Pirelli continues to be under fire with more claims that the Lotus team has an advantage.
Indeed there were many questions to why the Infiniti Red Bull team was not consistent during the Formula One four rounds of the preseason testing in Jerez and Barcelona versus Mercedes setting fast times.
Having confirmed this week that team boss Christian Horner is staying, Dr Helmut Marko is now turning his attention to other contracts.
Helmut Marko has made clear Red Bull was not happy with Webber's driving at the 2012 Interlagos finale.
Helmut Marko claims that Ferrari has hurt their chance of luring Sebastian Vettel into the cockpit of the Prancing Horse.