Postpublished at 16:25 Greenwich Mean Time 10 November 2017
Edging into qualifying simulation runs territory as Kimi Raikkonen moves onto the supersofts.
Hamilton fastest in both sessions
Alonso set to race at Le Mans next season
Final practice at 13:00 GMT on Saturday, qualifying at 16:00
Gary Rose
Edging into qualifying simulation runs territory as Kimi Raikkonen moves onto the supersofts.
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Some moody clouds are gathering above the circuit.
Could we see some rain before the end of the session?
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Phil Lane: Toyota denied Le Mans win for past 2 years by mechanical problems! Doesn't bode well.
Daniel Eckersley: Le Mans in 2018 is an open goal for Toyota as the only works team next year. Makes perfect sense for Alonso to go and race.
Few changes at the top of the order now that the Red Bulls and Mercedes have come out to play.
Lewis Hamilton is quickest of all with 1:09.792, just six hundredths of a second ahead of Valtteri Bottas. Max Verstappen, meanwhile, is P3 after a 1:10.175.
Andrew Benson
BBC Sport’s chief F1 writer in Brazil
Pierre Gasly gets more grid penalties for an eighth MGU-H and sixth turbo - that'll be (I think) another 15 places of grid penalty.
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Meanwhile, there's a McLaren up in third place on the timesheet with Stoffel Vandoorne doing a 1:11.164.
McLaren's last win in Formula 1 came at Interlagos, with Jenson Button winning the 2012 Brazilian Grand Prix. Can't believe that's five years ago!
The two Ferraris are trading places at the top of the timesheet. Kimi Raikkonen is currently leading the way with 1:10.450, three tenths of a second quicker Sebastian Vettel.
Daniel Eckersley: Alonso next year: 'LMP2 engine, LMP2'
Keyleigh: Early #LeMans prediction- Alo's car breaks down with engine issue 28 laps before the end.
Sergio Perez takes back the wheel for second practice after George Russell stepped in this morning.
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Sebastian Vettel is the first to pop a time on the board as he does a 1:10.993 on soft tyres.
No sign of FP1 pacesetter Lewis Hamilton on track yet.
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After announcing his retirement from F1 at the end of this season, Felipe Massa is showing his home race some love during today's practice sessions.
It was a solid debut for British driver George Russell as he finished 12th quickest in the Force India in first practice.
Tom Clarkson caught up with Russell in the break between sessions and the 19-year-old told BBC Radio 5 live sports extra: "I didn't know the circuit or the car so I just wanted to gather as much information as possible.
The nummber one target was to enjoy it. F1 is what I have been working towards for a long time. It feels pretty normal at the moment. I feel good, I feel ready and this is where I want to be in the future."
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Second practice is under way and there's good news for Brendon Hartley. His Toro Rosso is ship shape and good to go. He's straight out to make up for lost time.
Lots of work going on in the Toro Rosso garage. As well as Brendon Hartley there were also problems for Pierre Gasly, who only managed five laps in first practice.
Three minutes to go until second practice gets under way.
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I'm stunned Renault appear to have missed the opportunity for a 'Yellow' joke here.
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Brendon Hartley turned 28 today but it's been a birthday to forget so far. A problem with his Toro Rosso early on in first practice scuppered his time on the track.
Hartley is not the only F1 driver past or present celebrating a birthday today. Eddie Irvine is celebrating turning 52.
Andrew Benson
BBC Sport’s chief F1 writer in Brazil
Fernando Alonso is set to race in the Le Mans 24 Hours for Toyota next season, BBC Sport has learned.
And the McLaren Formula 1 driver’s talks with Toyota have extended to the possibility of Alonso doing most of the World Endurance Championship in 2018.
No contract has been formally signed yet but sources close to the situation say that the Le Mans deal, at least, will happen.
Alonso will first drive the Toyota WEC car in a test in Bahrain on 19 November, the day after this season’s final race.
“Le Mans is agreed,” said a source close to Toyota. “The rest of the season is still being negotiated but it looks like he will do most of the races.”