Mark Webber has told his rivals to stop finding fault in the Red Bull car that has given him the championship lead.
Red Bull's latest design concept, the front wing, has come under scrutiny over its flexibility at high speed when it is supposed to remain static.
But Webber, who leads McLaren's Lewis Hamilton by four points, said: "The car has always been passed by the FIA. When people don't like what they see on the stopwatch, they have to justify their own positions sometimes."
The UK-based Australian, 33, added: "Our guys have broken their balls to design a car in the spirit of the regulations, but when there's pressure on people to perform and they're getting destroyed, that's how it is.
"Some teams have done certain things, other teams have done other things. McLaren incorporated the F-duct, which is a sensational idea.
We've turned the world upside down to try and do that, which is not without resource difficulties - but that's Formula 1."We're more than happy with what we have on the car, and we're sleeping well at night. You should never penalise things that are ingenious, and people who are doing a good job. There's always something new to bring out of the cupboard."
Ferrari have also developed their own front wing, and although no team has lodged a protest there have been many complaints, despite the wings passing the FIA tests as they currently stand.
Mercedes team principal Ross Brawn has, however, claimed the existing tests are "not correct", while McLaren team boss Martin Whitmarsh said it was "difficult to imagine" how some cars' wings could be legal.
Tests will be tightened ahead of the Belgian Grand Prix on 29 August.
Earlier in the season, Red Bull's innovative exhaust blown diffuser was also frowned upon - but it was deemed legal and other teams soon designed their own versions.
Meanwhile, Webber feels Red Bull should be allowed to equalise their engines in line with other teams.
The engine supplied by Renault to Red Bull cannot provide the horsepower of the Mercedes used by the German manufacturer, plus McLaren and Force India.
We've been looking for engine parity for the last few years because we know we don't have the most powerful engine."When we go to a track where there are not many straights, the car is good because we've had to try incredibly hard to get the car performing on those circuits."
