Williams introduced a new rear wing assembly on Thursday Getty Images Enlarge Felipe Massa thinks Williams may have made a breakthrough with the rear wing problems it struggled with throughout 2014. Last year one of Williams' weaknesses was an inability to look after its rear tyres during races and the team spent much of the season unsuccessfully looking for a solution. On Thursday, the opening day of the third and final test in Barcelona, Massa tested a new rear wing solution for Williams and he was impressed with its impact on the car's balance. "Yes, and it worked well," Massa said when asked if he felt the new wing was a breakthrough. "It was giving what we expected and...
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