Williams deputy team principal says the team have "got to do better" as they chase third in the standings.
Williams say they are in talks 'with a lot of drivers' and have refused to rule out hiring Jenson Button for 2017.
Lewis Hamilton has laughed off Felipe Massa's claims that he needs to focus on his driving instead of his party lifestyle.
Felipe Massa crashed out of Practice One for the second successive race after losing control of his Williams in Canada.
See how Felipe Massa's Monaco weekend got off to a dramatic start when he clattered the Ste Devote barriers in P1.
Who starred in the Shanghai sunshine and who wilted under the pressure?
The Chinese GP weekend got off to a dramatic start on Friday as Williams and Renault both suffered dramatic punctures.
F1 steering wheels now do far more than point the tyres in the required direction, so just what are all those buttons for?
Ferrari and Mercedes have gone in very different directions with their tyre selections for the Bahrain GP.
Williams have become the first F1 team to launch their full 2016 car ahead of the start of pre-season testing on Monday.
Rob Smedley says maintaining third spot is the minimum Williams should be aiming for, but admits they are looking over their shoulders.
Felipe Massa believes Williams can win a race in 2016 as the team look to build on their resurgence in the previous two seasons.
Damon Hill feels Williams must ditch their Mercedes engines if they are to return to winning ways and challenge for championships.
Williams are developing a "significantly different" car for the 2016 season as they bid to move on from third place.
Throughout 2015, Sky Sports have rated the drivers out of 10 following each Grand Prix of the season, but who came out on top?
Which drivers proved their pace over a single lap in their 2015 intra-team qualifying battles?
Lewis Hamilton says he is "well-rested and aiming to go out on a high" at this weekend's season-ending Abu Dhabi GP.
Williams have dropped plans to appeal against Felipe Massa's exclusion from the Brazilian Grand Prix last weekend.
The draw has been made for Friday's ROC Nations Cup and Saturday's Race of Champions at London's Olympic Stadium.
Felipe Massa has been excluded from the Brazilian GP after his tyres were found to breach temperature limits before the race.
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