2011 'proximity wing' rule not set in stone

Plans for adjustable 'proximity' rear wings next year are not set in stone, according to FOTA chairman Martin Whitmarsh.

The idea, giving chasing drivers the ability to reduce drag and therefore better mount overtaking moves, was championed by the teams association and recently rubber-stamped by the FIA.

But there has been some opposition since the announcement; primarily by those who think it is an unnecessary and artificial ploy, and also those who are concerned about safety.

"We will see whether people are convinced by it or not," said Whitmarsh, also the McLaren team boss.

The Briton admitted the proximity wing was developed due to "fan-based pressure" to improve the spectacle of overtaking, but said it is not certain the innovation will actually debut.