AT&T Williams F1 team boss Frank Williams said the team start the new season with a new look and new determination.

Speaking at the launch of the Williams-Toyota FW29 at Grove yesterday, he said: "Without question, 2006 was not our finest year but I am delighted to see how the entire Williams workforce has pulled together and redoubled its efforts over the winter. It is how you perform in adversity that really counts."

In addition to unveiling the team's new race car, livery and racing identity with its new title partner AT&T, the team also confirmed a major new sponsorship agreement with IT firm Lenovo.

Sir Frank added: "We begin this year with a completely new brand identity, courtesy of our new partners AT&T, four new or upgraded sponsors including Lenovo, a wealth of new engineering talent and, of course, what we hope to be the focus of all these efforts and ambitions, the FW29."

Driver Nico Rosberg said: "The experience from last year is going to help me significantly this season. The F1 environment is completely unique and I have learnt how to handle all of its various elements now.

"In the past weeks everyone in the team has been very positive and put great effort into the new car, so I think we can be optimistic about a much improved season ahead of us."

Rosberg is joined by the vastly experienced Alex Wurz, who is excited about the prospect of racing again. He said: "Although I have done thousands and thousands of Formula One kilometres in the last couple of years, I simply haven't had enough of the real stuff - racing - so I can't wait for the season to start.

"There is a really high sense of motivation in the whole team ahead of the coming season."

The AT&T Williams team hits the track in Jerez on Tuesday with two FW29s to build upon the significant testing mileage undertaken on interim winter cars with four weeks of testing in Spain, prior to the season's first race on Melbourne on March 18.