Mark Webber yesterday lashed out at suggestions his historic victory in Monaco 11 days ago was achieved in an illegal car.

The build-up on race day of Formula One's blue-riband event had included the possibility of a protest from rival teams to an illegal floor on the Red Bull cars.

In particular, it sported holes in its surface directly in front of the rear tyres, prompting team principal Christian Horner to insist that the cars were "fully compliant".

Despite Webber going on to take the chequered flag, resulting in six different drivers winning the first six races for the first time in F1 history, no protest followed.

However, last Friday, FIA technical director Charlie Whiting took matters into his own hands and issued a directive to all teams stating such holes were now illegal.

Asked about his win, and team-mate Sebastian Vettel's triumph in Bahrain, Webber said: "I am happy to be called lots of things and have criticism about my driving but I will not take talk about the car being illegal.

"The car passed every single technical regulation after the race. All the teams against it did not make any protest after Monaco, the car passed the test after Bahrain and passed the test after Monaco.

"There has been a clarification and the rule is different. We had a car that was legal for the start of the season, but the rule has been changed and we will race on."