The season has been a tough one for Williams, as reliability problems with the FW28 have seen Webber and rookie team-mate
Nico Rosberg fail to trouble the scorers at a majority of races. With the past two years having not lived up to his lofty ambitions, Webber now leaves for
Red Bull Racing, ironically the team - in its previous Jaguar Racing guise - that he left to join
Williams.
"It's clear that it's been a long and tough season for everyone at Williams but, with one event remaining, we'll be doing our utmost to extract the best possible result from the package we have," the Australian said, attempting to put a brave face on the campaign, "Interlagos will mark my last race for the team and, of course, it would be nice to sign off with a strong result for the boys."
Technical director Sam Michael will be sad to see countryman Webber depart, having valued his development input, and also laments the parting with Cosworth, despite getting his hands on
Toyota for next year.
"This weekend's race will be significant for the team for two reasons," he confirmed, "Mark has made a significant contribution over the past two seasons, not only on the race track, but he has also been a great team player and we wish him well for the future.
"It will also be Cosworth's last race with Williams, and we thank them for all their efforts this year. For everyone involved with the team, it would be a fitting reward to take some points away from the final round. It hasn't been the best of years for us, but we have taken all the lessons learnt on reliability and performance and are busy applying them to our 2007 car, where we aim to return to being a frontrunning team."
