First qualifying endspublished at 14:21 British Summer Time 12 May 2018
That's the end of the first part of qualifying, with Sebastian Vettel finishing quickest.
Crucially, though, it's time to find out who is out...
Summary
Hamilton on pole, Bottas 2nd, Vettel 3rd
Sunday's race is live on 5 live sports extra and the BBC Sport website at 14:10 BST
Vettel top in Q1 & Q2, Stroll crashes, Alonso in top 10 shoot out
Hartley out after heavy crash, Hulkenberg out in Q1
First qualifying endspublished at 14:21 British Summer Time 12 May 2018
Yellow flagpublished at 14:20 British Summer Time 12 May 2018
Lance Stroll is off! He's into the wall at Turn 13 as a miserable weekend continues for the Williams driver. That's his third off in two days.
Image source, F1 TwitterPostpublished at 14:19 British Summer Time 12 May 2018
Nico Hulkenberg moves up to 14th but an improvement by Stoffel Vandoorne drops him back into trouble.
Postpublished at 14:18 British Summer Time 12 May 2018
Esteban Ocon improves and is out of trouble for now - all on Nico Hulkenberg now...
Image source, Getty Imagesget involved Get Involved #bbcf1published at 14:16 British Summer Time 12 May 2018
Jeroen: Williams is nearly a second off the Saubers. What a shift in fortunes since last year, unbelievable. #F1, external#SpanishGP, external
Mark: 5 live with the shocking news Marcus Ericsson has fans. #F1, external#SpanishGP, external
Postpublished at 14:15 British Summer Time 12 May 2018
Three minutes remaining, so it's all about the guys in trouble at the moment. Stoffel Vandoorne is right on the bubble. He will most likely need to improve his time of 1:19.562.
Good news, Nico Hulkenberg fans, he's heading back out.
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End of twitter postPostpublished at 14:14 British Summer Time 12 May 2018
Sebastian Vettel lowers the benchmark with a 1:17.031 as Max Verstappen goes second quickest, four tenths slower than the Ferrari.
The Mercedes are fifth and sixth, sixth tenths off the pace but there's no real flexing of muscles from them yet.
Image source, Getty ImagesPostpublished at 14:13 British Summer Time 12 May 2018
Andrew Benson
BBC Sport’s chief F1 writerAlonso sixth quickest on the medium tyre with seven minutes left of Q1, splitting the Red Bulls on super-softs. Crikey. But he did tell me when we had a quick chat this morning there is not much between the three tyres here.
Image source, AFP/Getty ImagesPostpublished at 14:12 British Summer Time 12 May 2018
In danger at the moment are:
16) Ericsson
17) Stroll
18) Sirotkin
19) Hulkenberg
Postpublished at 14:12 British Summer Time 12 May 2018
Nico Hulkenberg is the only driver without any time on the board and his Renault is not sounding too peachy at all. He pits, but will the team have enough time to assess the issue and get it sorted?
Postpublished at 14:11 British Summer Time 12 May 2018
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End of twitter postPostpublished at 14:09 British Summer Time 12 May 2018
Good time for Fernando Alonso on medium tyres. He is fifth quickest thanks to a 1:18.707.
Postpublished at 14:07 British Summer Time 12 May 2018
Kimi Raikkonen moves above his team-mate with 1:17.483 as Lewis Hamilton's first time on the super-softs - a 1:17.63 - puts him second.
Image source, Getty ImagesPostpublished at 14:06 British Summer Time 12 May 2018
Lance Stroll kicks things off with a 1:20.6 but he soon drops down the order as Sebastian Vettel leads the way with a 1:17.806.
Image source, Getty ImagesPostpublished at 14:03 British Summer Time 12 May 2018
Kimi Raikkonen heads out with the super-softs on his Ferrari, while Fernando Alonso has opted for mediums.
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End of twitter post'I'm fine'published at 14:02 British Summer Time 12 May 2018
Toro Rosso driver Brendon Hartley, speaking to BBC Radio 5 live sports extra about his final practice crash: "I'm fine, I had a bit of a headache earlier but I'll be fine to race tomorrow.
"The crash happened pretty quickly. I thought I might have slowed down more but the impact was pretty big."
Image source, Getty ImagesFirst qualifying startspublished at 14:01 British Summer Time 12 May 2018
Qualifying is a go!
Lance Stroll is first out with super-softs on his Williams.
Postpublished at 13:59 British Summer Time 12 May 2018
Get Involved #bbcf1
Phil: #bbcf1, external I'd like to see a bottlenose Dolphin shaped nose
Interesting...Personally I'd like to see a cup-holder. All that driving seems like thirsty work...
What weird and wonderful upgrades would you like to add to your F1 car?
Postpublished at 13:58 British Summer Time 12 May 2018
A very welcome face in the Williams hospitality area - Felipe Massa has popped over to catch up with some old friends.
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End of twitter postHow's the weather?published at 13:57 British Summer Time 12 May 2018
Cloudy but warm for qualifying...
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End of twitter post