Postpublished at 14:03 British Summer Time 27 July 2018
Grosjean starts on the softs, while Magnussen has the white medium boots on.
Sebastian Vettel of Ferrari tops FP2
Red Bull's Daniel Ricciardo fastest in FP1
Final race before summer break
Lewis Hamilton leads Vettel by 17 points in title battle
Get involved: Evaluate the 2018 drivers so far #bbcf1
Michael Emons
Grosjean starts on the softs, while Magnussen has the white medium boots on.
We are under way, and it is all action in the Haas garages with Kevin Magnussen and Romain Grosjean both hitting the circuit as soon as they can.
Marcus Ericsson and Charles Leclerc are also keen. Ninety minutes of FP2 is go.
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Which drivers have over-achieved or under-performed this season?
Carl Ford: Under achiever of F1 2018 has got to be GRO, Haas have produced a good car. Van is under performing but that McLaren is a bag of a car.
JJ Jackson: Underachievement must go to Kimi and Stroll...cars either end of the performance curve, but neither driver to scratch. Overachievers arguably Alonso and Hamilton... Ham has the car, but managed to overcome set backs, while Alo outperforming car as ever.
We are live again with our commentary, so press the play button at the top to listen along to Jack Nicholls, Jolyon Palmer, Andrew Benson and Jennie Gow.
And you thought it was hot in Britain? Track temperature = 54 degrees.
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Which drivers have over-achieved or under-performed this season?
Ross Price: Magnussen is overachieving this year. Leclerc too. Oh, and Alonso...40 points(!) carrying McLaren. Ericsson and Vandoorne definitely not achieving by comparison. Grosjean just needs to calm down. Less hero to zero-ing. He has the pace.
Euan: Over achiever has definitely been Charles Leclerc. He has been incredible. Under achiever is McLaren (does that count?) Been awful.
We are back to the usual 20 names for session two, meaning Charles Leclerc gets back into his Sauber after Italian Antonio Giovinazzi took part in FP1, finishing faster than Williams' Sergey Sirotkin and the other Sauber man Marcus Ericsson.
This Hamilton fan has gone to extreme lengths to show his support for the four-time world champion.
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Carl Ford: Welcome back #bbcf1, external I think we’ll see HAM and BOT much higher up the time sheets in FP2.
For those not with us earlier, Hamilton was only fifth fastest and Bottas sixth, although neither man went on the ultrasofts, unlike both Ferraris.
However, the Red Bulls, who came first and third, also did not reach for the ultrasofts.
Lewis Hamilton has been out and about meeting some fans in between the sessions.
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Which drivers have over-achieved or under-performed this season?
Jeremiah Kariuki: The two Williams drivers and in particular Sirtokin, despite being in a poor car, have performed dismally. Alonso who is not on a good car has done. Better than drivers in a better car, like Grosjean.
Maksim Marinković: Sainz seems to be outqualified and outraced by Hulk. Many rated him way better than this.
Alex: Surely Max has to be within a shout of the ‘under-achievement’ category. He has set such a high standard of expectation for himself, China & Monaco were missed opportunities.
Andrew Benson
BBC Sport’s chief F1 writer at the Hungaroring
Renault say precautionary energy store change for Hülkenberg. Hope to get him out for the start of P2
One of the more dramatic moments of the opening session came when Renault's Nico Hulkenberg ground to a halt by the side of the track. But there is hope for the French team...
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Welcome back. It was Red Bull's morning in Hungary. What is going to happen in session two?
Time to grab some food and we will be back at 13:30 BST for practice session two.
See you then.
A few things to have a read of...
Red Bull's Daniel Ricciardo pipped Ferrari's Sebastian Vettel in first practice at the Hungarian Grand Prix.
The Australian was just 0.079 seconds quicker than Vettel but was running on a harder tyre than the German. Ricciardo's team-mate Max Verstappen was third quickest as only 0.088secs separated the fastest cars.
Ferrari's Kimi Raikkonen was fourth, 0.335secs off the pace, and ahead of Mercedes' Lewis Hamilton, who had a big spin at Turn Five. The world championship leader was not the only driver to lose control on the twisty and challenging Hungaroring's dusty track surface.
Sauber's Marcus Ericsson had two spins - one at the final corner early in the session and a high-speed one at the uphill kink of Turn Five, in which he narrowly escaped a sizeable impact with the barriers.
Verstappen also had a spin, at Turn One, and the other Sauber driver in the session, Antonio Giovinazzi, who was driving Charles Leclerc's car, suffered a major lock-up early in the session. Toro Rosso's Brendon Hartley spun at the final corner right at the end of the session.
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A good morning for Red Bull. A bad morning for Mercedes, Sauber, Williams and Force India.
Mercedes surprisingly off the pace in session one. They won't have long to wait to fix it though as session two gets going at 14:00 BST.
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