Williams suffered four rear tyre failures in Turkey

Drivers Mark Webber and Nick Heidfeld were forced to withdraw from the Turkish Grand Prix after suffering two tyre failures each.

Neither Williams or their tyre supplier, Michelin, were able to offer an immediate explanation.

But Williams say rigorous tests show there is little chance of a repeat.

Williams and Michelin have worked hard over the last week to get to the bottom of the problem.

Williams technical director Sam Michael said: "To address the tyre incidents that we experienced in Istanbul, we have worked through all the possible variables, such as pressure and camber, with Michelin.

"In the Williams research and development labs at Grove we also performed some loaded tyre tests to check what type of deflections the tyres would have seen during the lap.

"Finally, at the test in Monza last week, we went through various trims of the bodywork to ensure that there is no possibility for the tyre to touch anything on the car."