He refused to elaborate on speculation linking Red Bull with Renault's V8 engines next season, with the current Ferrari power moving to sister team Toro Rosso.

"Rest assured Red Bull will have a very good engine next year. We've got (designer) Adrian Newey on board and we will have no worries there. As we've seen from this season it's only one major part of what makes a car competitive."

Asked about the vacant seat at Renault, which is now expected to be filled by Finn Heikki Kovaleinen if Kimi Raikkonen switches from McLaren to Ferrari as expected, Webber raised questions about Briatore's future.

"I've got a good idea what is going on (with the Renault seat), but maybe you should be asking Flavio what he's doing next season," he said.

Webber confirmed he would see out the rest of the season with Williams, starting with the Turkish Grand Prix in Istanbul on August 27.