Williams want stricter ban on flexi-wings

As revealed by autosport.com, BMW-Sauber were at the centre of claims at last weekend's Canadian Grand Prix that their rear wing was flexing, after photographic evidence was distributed among rivals teams.

Although the wing passed the FIA's scrutiny, Michael thinks that action still needs to be taken to rid the sport of this grey area in the regulations.

"Article 3.15 (of the Formula One technical regulations) means you can't have movable aerodynamic devices," said Michael. "You can use that interpretation to stop anything that moves.

"Obviously there are limits, because you can't stop everything from moving on the car. Pieces can't be infinitely stiff, there are parts that will move. But when you have parts that are intentionally made to flex to reduce drag, it's not good news really.

"Ultimately it's going to end in tears. There will be a break at some point in racing or testing, as everyone's pushing to get every last bit of performance. It's a very stupid game."

Michael added: "It's ridiculous to have flexible wings in F1. They banned them 45 years ago because people got hurt, and they have let them come back in again."

Honda Racing boss Nick Fry said last weekend that he was hopeful the FIA would take action against BMW-Sauber ahead of this weekend's United States Grand Prix following talks prior to the Montreal race.

Fry had submitted fresh photos and video evidence to support his views that the F1.06 rear wing was flexing at high speed.