Sauber’s James Key says that the team would have gained no performance advantage from the rear infringement that led to both cars being disqualified in Australia.
Sauber has announced its intention to appeal the decision.
Key said: “This is a very surprising and disappointing result. It appears that there is a question over the top surface of the uppermost rear wing element, this area is not the working surface of the component and therefore relatively unimportant to its function.
“Certainly this has not lead to any performance advantage. We are checking the design of the parts now to better understand the situation and we intend to appeal the decision made by the stewards.”
Adam Cooper F1 
I don’t agree with penalizing the team because of a minor discrepancy that should have been caught in scrutineering. Just tell them what was discovered so that they can correct it for the next race.