So here's how they stand: 1) Hul 2) Ros 3) Kvy 4) Ham 5) Gro 6) Mas 7) Bot 8) Sut 9) But 10) Mag 11) Alo 12) Vet 13) Ric 14) Rai 15) Gut 16) Per 17) Ver 18) Mal

So Nico Hulkenberg leads ahead of Daniil Kvyat, as neither have pitted. Nico Rosberg is third, having set the fastest lap, with Lewis Hamilton fourth and Romain Grosjean fifth. Still 61 laps to go.

David Coulthard
BBC F1 co-commentator

"Rosberg just managed to stay ahead but he did have the benefit from DRS from Grosjean in front of him. This is great window of opportunity for Hamilton to get past team-mate."

Huge blow for Felipe Massa who has been given a five-second penalty for speeding in the pit-lane. He must take that at his next stop. Meanwhile, race leader Lewis Hamilton pits from the lead. It's a fraction faster than Nico Rosberg! It's going to be so close! But Rosberg has done just about enough and retains the place. They're fighting over fifth as the four cars in front of them habe not pitted. Nico Hulkenberg leads.

Neil Richards, external: You always feel Lewis just keeps him where he wants him, like a puppet on a string.

James Ayres, external: Come on Lewis Hamilton! Let's get another victory! Onwards to the world championship!

Abdel, external: Sebastian Vettel, the four-time world champion once upon a time...

David Coulthard
BBC F1 co-commentator

"What is so impressive about a Grand Prix is that the most important part of a race is when the car is not actually moving and the pitmen and women work so fast to get the car out quickly. There is basically a two second window these days."

Image source, Getty Images

Rosberg got a great start and was unchallenged by Hamilton, but Vettel lost two places.

Race leader Nico Rosberg pits, takes on the medium tyres, and is on his way in just three seconds. Lewis Hamilton moves into the lead, with Esteban Gutierrez second and Kimi Raikkonen third.

Valtteri Bottas and Jenson Button pit together. Good stops from both Williams and McLaren and they rejoin in unison, just behind Felipe Massa. So we're as you were.

Felipe Massa is the first of the frontrunners to pit. It's a good stop for the Williams driver, who swaps softs for mediums, but he rejoins in 16th, having been third.

Fernando Alonso's Ferrari is all over the place, that car really sliding around. Perhaps we'll see him in for new boots sooner rather than later. The Spaniard is currently seventh, defending from Red Bull's Sebastian Vettel whom he is tied on points with.

Good opening few laps from Esteban Gutierrez, who is up to 10th in the Sauber. How dearly the Swiss team would love to score what would be their first points of the season. No change in the gap between the two leaders, with Nico Rosberg heading Lewis Hamilton by 1.2 seconds.

Daniel Ricciardo is putting pressure on his Red Bull team-mate Sebastian Vettel in the battle for eighth. He has a look into Turn One, but he's not quite close enough. Lewis Hamilton keeps the gap at 1.2 seconds as he chases team-mate and race leader Nico Rosberg.

David Coulthard
BBC F1 co-commentator

"I think that all of the drivers are anticipating problems with these option tyres, so it will be interesting to see if they can get anywhere near 10 laps before they have to change them."

Nico Rosberg sets about opening up a gap over team-mate Lewis Hamilton and now leads by 1.2 seconds. Felipe Massa is holding on to the Mercedes, in front of his home crowd, just one second adrift.

Sebastian Vettel has a shocker, losing a place to Kevin Magnussen and then Fernando Alonso, after running wide. He's now eighth. Nico Rosberg leads by 0.8 seconds from Lewis Hamilton.

David Coulthard
BBC F1 co-commentator

"It was great getaway from Nico Rosberg and he didn't even have to battle to take that first place, the two Mercedes have already opened up a gap on the other cars."

Nico Rosberg nails another perfect start as he sails into the first corner in the lead of the race with Lewis Hamilton tucking into second. Felipe Massa holds onto third, with Valtteri Bottas fourth.

Nico Rosberg leads the field away for the formation lap. It's a short lap here, so they'll be back round in a couple of minutes.

Despite a threat of rain all weekend, it looks like the race will be dry, which is bad news for drivers such as Jenson Button who would have hoped the tricky conditions would help close the gap in performance to the likes of Mercedes and Williams. Pirelli say a three-stop strategy is the quickest, but they expect most teams to try a two-stopper in order to avoid getting caught up in traffic.