Williams confirms new wings for Canada

Both Rubens Barrichello and Nico Hulkenberg were forced to revert to an older spec for Turkey after their crashes in the Monaco race.

Technical director Sam Michael has confirmed the updated wing, which he reckons is worth a tenth of a second, will be ready again for Canada.

"Running the old front wing cost us approximately one tenth per lap, but it worked well in the high-speed corners," said Michael on Tuesday.

"We will have the next evolution of the front wing on both cars in Montreal next week."

Michael also said the team is investigating the cars' clutches following Barrichello's problem at the start in Istanbul.

"The clutch bite on Rubens' car was stronger than we had anticipated taking into account the data from the practice starts undertaken earlier in the weekend. We have the clutches from both cars under investigation in the factory now to see what the problem was."