Having initially provided its thumbs-up to the new 2013 Williams, the FIA has back-peddled over the car's exhaust layout and declared the design illegal before the F1... read more »

Pastor Maldonado has played down concerns that Williams will take a step backwards if they are forced to make changes to their exhaust design... read more »

Williams and Caterham's exhaust solutions have not been ruled illegal by the FIA, ESPN understands read more »

The new Williams FW35 is a big improvement on its Formula 1 predecessor, according to the team's lead driver Pastor Maldonado read more »

Pastor Maldonado described the FW35 as "a big improvement" after his first day in the new Williams at Barcelona read more »

The Williams FW35 chassis enjoyed an almost trouble-free debut at the Circuit de Catalunya on Tuesday, with Pastor Maldonado racking up 86 laps in the team's latest... read more »

On the same day that Williams rolled out the FW35, they have been told that their new exhaust is illegal... read more »

Nico Rosberg took the top honours on the opening day of the second pre-season test in Barcelona on Tuesday. Times from the Barcelona pre-season test (Tuesday):... read more »

The FIA appears to have approved an exhaust design being run by both Williams and Caterham, which others teams have suggested is not legal. read more »

Williams and Caterham may have to drop the controversial vanes that sit in the 'Coanda channel' of their 2013 Formula 1 cars after being advised that the FIA... read more »

The exhaust designs on the new Caterham and Williams contenders have been declared illegal by governing body the FIA, according to the BBC. Both teams have pushed the... read more »

The FIA has ruled that both Williams and Caterham's unqiue exhaust designs, which feature airflow conditioners, are illegal. The designs have both come under scrutiny from... read more »

Williams and Caterham are told by Formula 1's governing body that it considers exhaust designs on their cars to be illegal. read more »

The newly launched Williams FW35 has already caught the eye of rival teams thanks to its innovative exhaust design. Though many within the paddock are questioning its legality.... read more »

Williams technical director Mike Coughlan insists the Williams exhaust solution is legal after the team launched the new FW35 read more »

Pastor Maldonado has highlighted consistency as one of the key areas Williams must improve while Valtteri Bottas is ready for his rookie campaign... read more »

Sebastian Vettel heads Kimi Raikkonen and Fernando Alonso as teams break for lunch on first day at Barcelona, the new Williams FW35 also looking good straight out of the box. read more »

Williams technical director Mike Coughlan is certain that the vane in the FW35's exhaust outlet is legal despite similarities to a controversial part on the Caterham. read more »

Williams has brought to an end the launch season after finally unveiling its 2013 car, the FW35, at the second pre-season test in Barcelona on Tuesday. The Grove outfit has... read more »

Williams technical director Mike Coughlan has described Pastor Maldonado as "a great asset" to the team read more »

Valtteri Bottas has admitted he is "tingling" ahead of the debut of his 2013 race car. After teammate Pastor Maldonado drives the new FW35 on day one in Barcelona,... read more »

Bruno Senna has suggested he preferred to bow out of formula one than run around at the back of the grid with Caterham or Marussia. Dropped by Williams after a single season... read more »

Williams aim to continue the progress made last year after they unveil their car for the 2013 Formula 1 season. read more »

Pastor Maldonado is targeting a more consistent challenge at the front of the grid this season with Williams read more »

Williams finally took the covers off their 2013 challenger on Tuesday morning, with Sir Frank Williams saying it is a "step forward"... read more »