First Red Bull were accused of not complying with the regulations and now the Milton Keynes squad have pointed the finger at Ferrari.

Just weeks after the FIA was forced to close a loophole after it found irregularities in Red Bull's engine mapping, the team were forced to fend off claims that they made illegal changes to their car in parc ferme.

Reports suggest the FIA asked them to change a mechanism that allowed them to alter the front suspension settings manually.

Red Bull team principal Christian Horner has described the accusations as "all bullsh*t" while motorsport advisor Helmut Marko claims rival teams are bringing the issues up due to "jealousy and envy".

Marko also took things a step further by claiming Ferrari had run an identical design.

"We have never adjusted anything by hand. I don't know why the others are upset - we know Ferrari has used something like that for a year," he told Auto Motor Und Sport.

Ferrari, though, have dismissed the claims.

"This is completely untrue," a team spokesman told Autosport.

When asked for a response to Red Bull's accusations, the Ferrari spokesman added: "Did they really accuse us of cheating? Are you sure? Anyway, we have all the confidence in the FIA's role to make sure all the regulations are fully respected."