Williams rolled their new F1 car out of the garage and straight into a dispute over the design of its exhausts yesterday. The last of the 11 teams to show off their 2013 car, the former champions had barely started testing the FW35 before it emerged that the sport’s governing body disagreed with their interpretation of the rules. “The team spoke with the FIA this morning,” said a spokeswoman in Barcelona. “The team are now seeking further clarification on this and a decision will be made before the first race.” Picture shows Pastor Maldonado (left) and Valtteri Bottas unveil the new Williams.

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