2017 Brazilian Formula 1 Grand Prix - First free practice
We will be back for FP2 at 14:00 local time!
Stay tuned to the website for a full report, results, news and photos
Hamilton remains on top, ahead of team-mate Bottas
"I'm struggling to see with the flatspots," reports Bottas - so that could explain him running wide a few moments ago
Replays show Bottas drifting wide and over the kerbs at Megulho
Replays show Vettel getting held up by Sainz Jr. through the Senna 'S' - Vettel waved his hand in the air in frustration as he drove past
Verstappen swears when asked about the state of his tyres - he is struggling for grip in this session
Verstappen is given some instructions by his engineer, to which he responds, "I'm trying, but if there is no grip..."
Most drivers have settled into longer runs, with the session drawing to a close
Vandoorne pits for a nose change - that'll be a back-to-back comparison
Vandoorne, running McLaren's latest updates, is back ahead of team-mate Alonso - they hold eighth and 10th respectively
Replays show Russell locking up heavily in the middle sector of the lap, leaving him with a big flat-spot
Russell is up to 13th, around a second away from regular driver Ocon
Top 10 update: HAM, BOT, RAI, VER, RIC, VET, MAS, ALO, VAN, STR
Hamilton takes to the grass to avoid contact
Replays show Hulkenberg and Hamilton getting very close at Juncao
Toro Rosso's day is not going well - Gasly's car is up on jacks and in two pieces, while Hartley is stuck in the infield
Another moment for Vettel, this time through the Senna 'S'
All of these lap times are coming on the Super Soft tyre compound, as drivers begin to push the limits
Verstappen goes fourth, splitting the Ferrari drivers
Hamilton is back on top - he clocks a 1:09.202 to lower the track record again
Replays show Alonso sliding his way out of Bico de Pato
Hamilton has also made the switch to the red-marked rubber...
Bottas, on Super Softs, edges ahead of Hamilton with a 1:09.329
They have all taken on an eighth MGU-H, meaning a 10-place penalty
Penalty news: Red Bull's Daniel Ricciardo and the Toro Rosso drivers are set for grid drops this weekend: https://www.gpupdate.net/en/f1-news/360788/ricciardo-str-set-for-brazil-grid-penalties/
Russell, running with plenty of flow-vis paint, has just clocked his first time - a 1:12.746 puts him 15th
Ericsson, Alonso and (the sidelined) Hartley are yet to post lap times
Current top 10: HAM, BOT, MAS, VET, VAN, RAI, RIC, VER, OCO, STR
Replays show Hamilton locking up and running off at the start of the lap
That's a new track record...
Hamilton gets down to a 1:09.672 - rapid pace already
He soon recovers and makes his way back to the pits
Vettel goes for a spin at Pinheirinho
Hamilton now goes second - Mercedes forms a 1-2
Vettel, on Super Softs, slots into second, between Bottas and Verstappen
Hartley's car has been cleared away and we're green again
The Virtual Safety Car has now been deployed
Smoke is pouring out of his Renault-powered Toro Rosso...
Another engine issue for Hartley! He stops on track
Hulkenberg has some strands of cotton attached to the top of his helmet for this session - these will assess the airflow
Bottas lowers the early benchmark to a 1:10.102
Most teams will be running back-to-backs here and in Abu Dhabi
Ricciardo goes third - he and team-mate Verstappen are running several development parts, in preparation for the 2018 season
Bottas, on Softs, clocks a 1:10.820 - he slots ahead of Verstappen
Another lap, another improvement for Verstappen - 1:10.959
Verstappen improves to a 1:11.491 with his latest lap
Leclerc is running the 'halo' for this early running - remember, that will be introduced on all cars next season
Verstappen (Super Softs) gets the first time on the board: 1:12.253
Hamilton and Bottas wait patiently in their cars
We've already seen all bar the Mercedes drivers hit the track
Green light! FP1 begins - Ricciardo can finally get going
"Can you sing me a song or something?" Ricciardo asks over the radio, as he waits to head out...
He commented on Thursday that he hopes to continue racing in 2018, as he evaluates other categories: https://www.gpupdate.net/en/f1-news/360756/massa-hopes-to-continue-racing-in-2018/
Ricciardo is already at the end of the pit lane, sporting a set of @pirellisport Mediums
In terms of DRS, there are two zones in place - the first comes along the Reta Oposta (between Turns 3 and 4), with the second on the main straight
As a reminder, Pirelli has brought its Super Soft, Soft and Medium tyres here
Antonio Giovinazzi was also set to run in FP1, but Haas has pushed that back to FP2, guaranteeing a clear session for Kevin Magnussen
This will mark Russell's race weekend debut
F2 champion Charles Leclerc and GP3 champion George Russell will be in action in FP1, driving for Sauber and Force India respectively
And, ahead of the winter period, Mercedes, Ferrari and Red Bull will all be looking to finish in style - "You're only as good as your last race," as they say...
Valtteri Bottas is pushing to beat Vettel to the runner-up spot, while a host of intra-team battles remain finely balanced
But there is still plenty to fight for out there
Of course, both titles have now been settled - Lewis Hamilton and Mercedes getting the better of Sebastian Vettel and Ferrari
Let's see if the forecasts turn out to be accurate!
We're set for heavy showers this afternoon and thunderstorms tomorrow, before the weather clears up again for race day
As highlighted by Mercedes, it's a glorious start to the weekend at Interlagos, but rain is on the way...
Hello and welcome to live coverage of first practice for the Brazilian Grand Prix!