F1 will ban double diffusers in 2011 according to Autosport.
The controversial diffusers were ruled legal after last year’s Chinese Grand Prix, forcing several teams to re-design their cars.
They allowed teams to claw back much of the downforce they had lost because of changes to the rules in 2009. They were also blamed for making it harder for drivers to overtake – though some designers have disputed that claim.
After first legalising the diffusers and then deciding they would be banned again in the space of just ten months, you have to wonder if they should have been made legal in the first place.