Both Ferrari and Mercedes have been asked to reply to the FIA's disciplinary inquiry © Sutton Images Enlarge Related Links Drivers:

Christian Horner Teams:

Ferrari

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Mercedes

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Red Bull

Christian Horner has defended Ferrari for the test it carried out with Pirelli prior to the Spanish Grand Prix.

With the FIA investigating the tyre test carried out by Mercedes using its race drivers and 2013 car, the FIA has also called on Ferrari to reply to the disciplinary inquiry after it used a 2011 car to complete a similar test. Having appealed against the Mercedes test along with Ferrari, Red Bull team principal Horner said that he has no problem with Ferrari's conduct because it used an older car.

"Ferrari's position is different, even if they have used their official reserve driver (Pedro de la Rosa) the car was not its 2013 one," Horner is quoted by Autosprint. "The two facts are not even comparable. What do we expect from the FIA after our complaint? That the matter be analysed quickly and fairly. "

Horner added that Pirelli could not be exempt from any blame in the situation.

"Everyone in F1 is subject to the rules; teams, drivers and suppliers, such as Pirelli itself. The rules also apply to them. "