Image source, Getty Images

It's another fastest lap of the race for Lewis Hamilton who looks like he is having a great time out in front. His lead now up to 5.4 seconds over Valtteri Bottas (pictured). Still 36 laps to go.

Mercedes on Twitter, external: Lap 17 #JB17 Jules Bianchi in our thoughts and prayers #ForzaJules

David Coulthard
BBC F1 co-commentator

"It's been a great turnaround for Williams. It was more of a surprise to see the problems they have had over the last few years than the fact they are racing so well here today and challenging for a podium."

Felipe Massa wastes little time behind Esteban Gutierrez, passing the Sauber drive with ease to move into 12th. He's just 2.1 seconds adrift of Nico Rosberg.

Richard Grove:, external Gotta feel the championship has slipped away from Rosberg.

Tony Schumacher:, external What a strangely sterile, flat Grand Prix this is, it's like a race around a Milton Keynes Tesco car park

Justin Fairweather:, external If Button can get a podium today it will be a great advert for him to get a new contract next year.

Nico Rosberg passes Esteban Gutierrez for 11th while Felipe Massa makes short work of Nico Hulkenberg for 13th. Meanwhile, Lewis Hamilton leads by 4.5 seconds from Valtteri Bottas.

Nico Rosberg moves in 12th, 2.3 seconds behind the Sauber of Esteban Gutierrez. Ther German is told he is doing a good job and on schedule for a podium. That just shows how quick the Mercedes is that he is able to drop to the back of the field and still contend for a podium.

David Coulthard
BBC F1 co-commentator

"Jenson Button running quite solid in third place but he only has just over 13 seconds on Nico Rosberg who is in 13th place so by the time he has to go for a pit stop then Rosberg could be up challenging for third place, if Nico can keep up this pace."

Lewis Hamilton is ticking along nicely at the front, the championship leader heading Valtteri Bottas by 3.5 secs with Jenson Button still in third. However, with the pace and progress Nico Rosberg is showing, Button still has a fight on his hands to hold on to that podium - which would be his first since the opening race of the season.

Max Chilton retires from the race while Daniel Ricciardo pits for fresh boots. The Australian was seventh. He rejoins 18th. Lewis Hamilton leads Valtteri Bottas by 3.5 seconds.

Nico Rosberg passes Romain Grosjean for 14th. The German is aiming to get to the end of the race without stopping again following that first lap pit stop.

David Coulthard
BBC F1 co-commentator

"Daniel Ricciardo is having real problems out there, he is losing real pace so could be one of a few drivers forced to make two stops because of the blistering on his tyres."

Max Chilton pits for the second time with 43 laps still to go. Meanwhile, Kevin Magnussen is catching Ferrari's Fernando Alonso, who is in fourth. The gap is down to just 3.1 seconds.

David Coulthard
BBC F1 co-commentator

"Lewis Hamilton can't afford any kind of lock-ups because Valtteri Bottas, with the straight line speed of the Williams, will put him under real pressure out there. "

Nico Rosberg passes Marcus Ericsson for 15th and Felipe Massa follows his through into 16th. Both are on recovery drives, with fast cars, having made early pit stops in this race.

Image source, Lotus F1 Team

Lotus on Twitter, external: Settled in for an afternoon in front of the TV.

McLaren's Jenson Button, in third, has eased the pressure on his shoulders by stretching the gap between himself and Fernando Alonso to 2.4 seconds.

Lewis Hamilton leads Valtteri Bottas by 2.9 seconds as he sets another new fastest lap of the race. He's the only one lapping in the 1m43s.

Mercedes' Nico Rosberg: "For your information, I'm driving in a way I can get to the end of the race for you."

Valtteri Bottas is doing a stunning job of trying to hold on to Lewis Hamilton at the front. The Finn just 2.7 seconds behind the Mercedes driver in second place, with Jenson Button 5.9 seconds further back.

1) Ham 2) Bot 3) But 4) Alo 5) Mag 6) Vet 7) Ric 8) Ver 9) Rai 10) Kvy

Image source, Reuters

Nico Rosberg locked up heavily as he passed team-mate Lewis Hamilton at Turn One at the start, but then went off track having flat-spotted his tyres. The German had to pit and dropped to the back of the field. He's now up to 17th.