'The design of this year's car has been pretty smooth,' continues Sam. The ban on double diffusers and the F-duct forced the aerodynamicists to seek new downforce solutions KERS had to be incorporated into the layout and the team had to prepare for the arrival of a new tyre supplier, Pirelli, for the first time in five years. New rules, which were only confirmed by the FIA's World Motorsport Council in June 2010, compelled Williams F1's technical team to take an innovative approach to its new car. We think this is a good car, but we'll have a better overall picture in a few weeks time.' 'Until you start testing,' says Sam, 'you're never sure how you're going to stack up against the opposition, but we're optimistic. It's a sentiment shared by technical director Sam Michael, who talks today about the team's 2011 FIA Formula One World Championship entry, the Williams Cosworth FW33, as it makes its track debut in Valencia this morning. In a recent interview, Rubens Barrichello described this year's Williams- Cosworth FW33 as 'aggressive'.

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