Postpublished at Lap 53/71
Lewis Hamilton is, unsurprisingly, flying. He's brought the gap between himself and Max Verstappen down to three seconds.
A couple more laps and we'll have tasty battle on our hands.
Vettel wins after overtaking Bottas at start as several cars collide
Hamilton up to 4th from pitlane start
Ocon, Vandoorne, Magnussen, Hartley out
Gary Rose
Lewis Hamilton is, unsurprisingly, flying. He's brought the gap between himself and Max Verstappen down to three seconds.
A couple more laps and we'll have tasty battle on our hands.
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Did they leave it late to tell Romain Grosjean about his time penalty?
The message flashed up ages ago on the data screens but Grosjean's race engineer is on the radio just now to tentatively say: "Box now, Romain, we have a 10 second penalty."
"For what!? You're kidding me," responds Grosjean.
Tom Clarkson
BBC Radio 5 live sports extra commentator at Interlagos
Hamilton's blood is up and he wants that podium at the very least.
Lewis Hamilton gets through the traffic and he's now got clear air. The Briton is 6.4 seconds behind Max Verstappen.
Meanwhile, Sebastian Vettel is comfortable out in front. He leads Valtteri Bottas by 3.1 seconds.
Tom Clarkson
BBC Radio 5 live sports extra commentator at Interlagos
What is frustrating about Lance Stroll is there have been examples of him doing well this year but he does make the same mistakes again. You'd think he'd be aware of the fact Hamilton would be around him again. It's almost unforgivable to hold him up twice.
Romain Grosjean pits to serve his 10 second penalty and he is back out in last place.
Tom Clarkson
BBC Radio 5 live sports extra commentator at Interlagos
This Interlagos circuit is a real rollercoaster - you don't want to run up it.
Frustrating times for Lewis Hamilton as he attempts to pick his way through some traffic.
"Urgh, lost two seconds there," he complains as he finds himself behind Lance Stroll and Pierre Gasly.
Felipe Massa is next on Daniel Ricciardo's list and the Australian gets the job done with no fuss. Now up to sixth.
Daniel Ricciardo is having all sorts of fun out on the track as he resumes his charge up the field. Those fresh supersofts help him to pass Fernando Alonso into seventh.
Max Verstappen is not having quyite so much fun as he has a little wobble at Turn Three.
"I'm all over the place," he says.
"It is a little gusty there," Verstappen is told.
"We are chasing a podium," is the message over the radio to Lewis Hamilton.
On those fresh tyres Hamilton slams in a new fastest lap of the race with a 1:12.423. He's 7.3 seconds behind fourth-place Max Verstappen.
1) Vettel leader
2) Bottas +2.571
3) Raikkonen +4.308
4) Verstappen +7.594
5) Hamilton +18.323
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Daniel Ricciardo also makes his one and only stop, swapping the softs for supersofts and he is back out in eighth.
Lewis Hamilton finally comes in for his first and only stop of the race. He's onto supersofts and back out in fifth.
Hammertime.
Brendon Hartley is told to box. The New Zealander is going to have to retire.
Martin Dee: Nothing of note about Hamilton's progress, he has the fastest car on the grid - all the cars he passed on track have much less pace
Fernando Alonso, currently eighth, has his eyes on Felipe Massa.
He's told about how far behind Sergio Perez is but Alonso isn't interested.
"I don't care about Perez, he will come. We catch Massa or we are in danger," he says.
"OK, go for it," Alonso is told.
He's 2.3seconds behind Massa.
Nico Hulkenberg is back into the top 10 as he nips around the outside of Pierre Gasly down into the first corner.
Lance Stroll attempts a move on Romain Grosjean in the battle for 15th, diving down the inside of the Haas but Grosjean defends and retains position for now.