Webber drove to his best finish of the year in last weekend’s German Grand Prix when he came home sixth and picked up three valuable points for the Jaguar team who are just a point behind Toyota in the constructors’ championship.

“The last three races have been very rewarding for our team, with reliability greatly improved and the pace of the R5 certainly embarrassing some of our so-called bigger and better-financed rivals,” said Webber.

“We’ll certainly be pushing as hard as ever and chasing every single point we can right until the last race in Brazil in October.”

The former Minardi driver, who has been in Formula One for three seasons, also admitted that it would be difficult to leave the Milton Keynes-based team.

“I’ve never enjoyed leaving the teams I’ve driven for in the past, as it’s important to forge strong relationships with the people you work with, and in doing so you become a part of that family,” he said.

“I’m still very close to all the people at Minardi, and I will remain the same with those at Jaguar Racing who have put me in a tremendous position from which to progress my career with Williams.”