Valtteri Bottas has highlighted improvements at the rear end of the new Williams FW35 as the most significant step forward the team has taken with its new car. read more »

Valtteri Bottas says he instantly felt a step forward with the new FW35 chassis compared to its 2012 predecessor, having tested Williams's latest creation for the first... read more »

Sergio Perez went quickest on the second day of testing in Barcelona for McLaren, posting a lap half a second quicker than the fastest lap from the 2012 test. His lap was also... read more »

Williams rookie Valtteri Bottas believes that the FW35 is an improvement on the FW34. Bottas drove the car for the first time in Spain during testing on Wednesday, setting the... read more »

Williams is not planning to replace Mark Gillan, the chief operations engineer who was credited with helping the team recover its lost form in 2012. Gillan left Williams late... read more »

Barcelona will this week host a head-to-head 'shootout' for the final race seat on the 2013 grid. Just like Williams weighed up Jenson Button versus Bruno Junqueira... read more »

F1's governing body has told Williams its exhaust solution for the newly-launched FW35 is not legal. It was already believed a similar solution for the Coanda-effect... read more »

Williams on Tuesday completed the 2013 grid by finally launching its new FW35. Every other team got their cars up and running recently at Jerez, triggering many rumours and... read more »

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 »