After being asked for clarification on the rules governing wings, the FIA are set to bring in more extensive testing, possibly doubling the weight that is placed on the wing ends to 100kg. This could force Red Bull and Ferrari to make some difficult changes to their cars, as the front wing has a big effect on the aerodynamics of the car as a whole. Mark Webber sees the complaints about the front wing as bad grapes from teams that can't keep up. "When people don't like what they see on the stopwatch, they have to justify their own positions sometimes." He also said that F1 should bring in engine parity, as it's known that the Renault engine is not as powerful as the Mercedes.