Postpublished at 14:17 British Summer Time 27 April 2018
"I'm always in traffic, I can't do a lap right now," moans Williams' Lance Stroll.
Summary
Ricciardo fastest in second practice, Hamilton 5th, Vettel only 11th
Red Bull appear to have best race pace as Mercedes & Ferrari struggle
Verstappen crashes in first session - adding to several incidents this season
Final practice & qualifying coverage from 10:30 BST Saturday
Postpublished at 14:17 British Summer Time 27 April 2018
Postpublished at 14:16 British Summer Time 27 April 2018
Brendon Hartley, Sergio Perez and Kimi Raikkonen all vanish off the track in a moment of seconds, and need to hit the reverse to get back on to it.
No grip for anyone. Tough and tricky in Baku.
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End of twitter postPostpublished at 14:13 British Summer Time 27 April 2018
It has not been a good day for the world championship leader Sebastian Vettel.
Only tenth in session one and lock-ups on his opening two flying laps of the second session.
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End of twitter postPostpublished at 14:11 British Summer Time 27 April 2018
Just as I write that, Kevin Magnussen and Brendon Hartley go first and second respectively.
A rather unusual top three at the moment of Magnussen, Hartley, Leclerc.
What a race it would be if these were to be the podium finishers on Sunday.
Postpublished at 14:10 British Summer Time 27 April 2018
Charles Leclerc, the new boy this season at Sauber, is showing what he is made of. He is quickest out of the 12 to set a time so far.
get involved Get Involved #bbcf1published at 14:10 British Summer Time 27 April 2018
What is your favourite race of all time and why?
Jon Bennett: Best race for me has to be Donington in '93 at the European GP. Great circuit, great story, great drive by Senna (and not forgetting Barrichello until he retired). Simple.
Alistair Mathieson: Brazil 2003 when there was the one corner several cars went off and then the red flag to finish the race but Fisichella crossed the line first but Alonso won the race.
Ian McCormack: Brazil 2008. I don't think you will ever get a end to a season like that EVER!
Image source, Getty ImagesImage caption, Lewis Hamilton overtook Timo Glock on the last lap to get the fifth position he needed to become world champion
Tweet us your favourite grand prix races by getting involved using the hashtag #bbcf1.
Postpublished at 14:09 British Summer Time 27 April 2018
First lap of the second session from Sebastian Vettel, and he makes a mess of it, forgetting to turn and go straight on into a run-off area.
We saw a few people do that earlier on at turn two, including Lewis Hamilton and Fernando Alonso.
Postpublished at 14:06 British Summer Time 27 April 2018
Carlos Sainz lays down the first time of the second session, a 1:48.433. It will be beaten as Bottas' best mark earlier was 1:44.242.
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End of twitter postWeather updatepublished at 14:04 British Summer Time 27 April 2018
We are 10C down at track level from earlier on to a much more manageable 31C. Still hot, but not as hot.
Image source, Formula 1Postpublished at 14:01 British Summer Time 27 April 2018
We are back under way. Ninety more minutes for everyone. No sign of Max Verstappen as the Red Bull mechanics still work to patch up his battered Red Bull.
Image source, Getty ImagesListen livepublished at 13:59 British Summer Time 27 April 2018
BBC Radio 5 live sports extraWe are live on BBC Radio 5 live sports extra and you can listen along via the play button at the top.
Join Alex Jacques, Jolyon Palmer and Andrew Benson for all the latest.
get involved Get Involved - #bbcf1published at 13:54 British Summer Time 27 April 2018
Verstappen or Ricciardo? Who do you prefer and why?
Jazim Sohail: A lot has been made of Verstappen recently due to his poor form and judgement but I think he is definitely the better driver in that team and possibly can challenge for the title this year
Kieran: Max is quick, but has no racecraft, therefore Daniel is better
Andrew Ogley: Max is having a 'mare ... two practice sessions, two crashes ... possibly over-driving?
Image source, Rex FeaturesEveryone wants to watchpublished at 13:53 British Summer Time 27 April 2018
The view from the castle? Uncomfortable.
Image source, Getty ImagesTyre trouble for Carlospublished at 13:50 British Summer Time 27 April 2018
It was not a good first session for Carlos Sainz. He was last, and this didn't do his tyres too much good.
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End of twitter postget involved Get Involvedpublished at 13:48 British Summer Time 27 April 2018
#bbcf1
Welcome all Formula 1 fans, young and old.
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Norris on front row in Formula 2 Championshippublished at 13:44 British Summer Time 27 April 2018
Elsewhere in Azerbaijan...
Eighteen-year-old Brit Lando Norris continued his impressive start to life in Formula 2 by securing a front-row spot in the latest race in the FIA Formula 2 Championship.
Norris, competing in only his third weekend of action in Formula 2, won the feature race in Bahrain earlier this month and is second on the grid for the hour-long race in Azerbaijan tomorrow (09:00 BST).
The Brit is a member of the McLaren Young Driver Programme and earlier this week said he wanted to "give McLaren a headache" over their Formula 1 driver selection for 2019.
Thailand's Alex Albon took pole, with other British drivers George Russell and Jack Aitken starting third and seventh respectively tomorrow.
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End of twitter postget involved Get Involved #bbcf1published at 13:41 British Summer Time 27 April 2018
What is your favourite race of all time? Who do you prefer - Verstappen or Ricciardo?
If you were with us earlier on we were asking for your favourite race of all time. We still want those suggestions and also let us know your thoughts on the Red Bull drivers.
Verstappen or Ricciardo? Which one is better and why? Which one do you prefer and why? Can either of them challenge for or win the world title this season?
Tweet us using #bbcf1
Who is better - Ricciardo or Verstappen?published at 13:37 British Summer Time 27 April 2018
For the last few days we have had a vote on our Formula 1 pages over which of the Red Bull drivers is better.
The results are in, and they are very one-sided.
Read more of our feature on who is better, Ricciardo or Verstappen?
Image source, .Disaster for Verstappenpublished at 13:35 British Summer Time 27 April 2018
But once again the headlines were concerning Max Verstappen. He lost control at turn five and spun into the wall, as you can see via this link.
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End of twitter postHow Bottas went quickestpublished at 13:32 British Summer Time 27 April 2018
Valtteri Bottas was eighth in the opening race of the season and has finished second in the past two races. Earlier today, nobody could go quicker, as you can see via the official Formula 1 Twitter account.
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