Lewis Hamilton finishes fastest
Perre Gasly does the most laps with 147
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Euan: Who would have thought before testing that it would be Mclaren and a Honda powered car racking up the laps?
Bawzoot Racing: Seeing the @ToroRosso, external go past 100 laps with the @HondaRacingF1, external engine makes you wonder how much of the previous issues were down to @McLarenF1, external size zero packaging?!?
Gasly 116
Vandoorne 110
Vettel 93
Magnussen 83
Ericsson 79
Perez, Bottas 60
Hamilton 51
Hulkenberg 49
Sirotkin 47
Sainz 42
Stroll 41
Leclerc 37
Verstappen 35
Alonso 26
1) Hamilton 1:19:331 medium
2) Vandoorne 1:19.854 hypersoft
3) Magnussen 1:20.428 supersoft
4) Vettel 1:20.692 soft
5) Alonso 1:20.929 supersoft
6) Sainz 1:20.940 medium
7) Stroll 1:21.310 soft
8) Perez 1:21.973 soft
9) Verstappen 1:22.058 soft
10) Gasly 1:22.134 supersoft
11) Hulkenberg 1:22.507 soft
12) Bottas 1:22.789 medium
13) Leclerc 1:22.808 soft
14) Ericsson 1:23.825 supersoft
15) Sirotkin 1:31.979 inters
A good Throwback Thursday from Nico Rosberg here as the former world champion looks back to the start of the 2010 Formula 1 season.
Michael Schumacher came out of retirement to drive for Mercedes alongside Rosberg.
"Eight years ago was a very special day for me," says Rosberg. "Little did I know it would be the start of something so big in my life.
"It was the first day of testing and presentation of the new Mercedes F1 car and the new Mercedes team. The resurrection of the Silver Arrow legend.
"I am very proud to have been there from day one. It was very emotional to be standing there next to Michael Schumacher, our German legend. Really amazing to think back to those days."
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BBC Radio 5 live
Something to mark in your diary - BBC Radio 5 live's season preview show is on air next Thursday 20:30-21:30 GMT
Jennie Gow, Andrew Benson and new signing Jolyon Palmer look ahead to the new F1 season while Christian Horner will also be on the show.
If you've got a question for the team, get in touch using #bbcf1.
Pierre Gasly joins Stoffel Vandoorne in the 100-laps club. Good mileage for the Honda-powered Toro Rosso today.
Lewis Hamilton goes quickest of all with a 1:19.333 on those trusty mediums. That's a half a second quicker than Stoffel Vandoorne's time on the hyper-softs.
Definitely no chicanes missed on that lap. The time stands.
Hang on, or is he...?
A personal best for Fernando Alonso as he does a 1:20.929. He stays fourth but is now within a second of the fastest time of the day.
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Martyn West: How about McLaren as raisin cookies that look like chocolate chip? They look great to the untrained eye but they're ultimately disappointing?
Moon Quddus: I feel like McLaren are those Nice biscuits. I loved them as a kid, but growing up they just seem waay too sugary for me. And a very fragile tea-dunker. Not as great as I remember them to be.
Joel Pambakian: I think we all know what force India would be... #pinkwafer, external#bbcf1, external
Image source, .Dan Knutson
F1 journalist in Barcelona
“Today we are learning a lot,” McLaren’s racing director Eric Boullier told the media this afternoon.
“Finally we got rid of bad weather and mechanical glitches in the car, so we could follow our programme. We have compressed it to give some priorities to some items. Today we are starting to gather some data on aero, and even work on some mechanical changes. So it is a learning process and we now try to learn as much as we can.”
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We're good to go again with a touch under 90 minutes left on the clock.
Lewis Hamilton, Fernando Alonso, Sergio Perez and Pierre Gasly swiftly head back out.
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Rekindled AI: Can we please agree (or at least reach some consensus) that lap times should not be published without a note to what tyre the times are set on.
Hit refresh and the compounds should be on the times entry below now. Apologies, I've been writing for eight hours now and I'm starting to see things that I can only describe as half F1 car half garibaldi biscuit floating across my vision.
The Red Bull is up and on the back of the recovery truck so testing should be good to go again soon.
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Christopher Clee: How about comparing biscuits with teams? You've put the Bourbon down as the Mercedes - how about the Garibaldi for Ferrari?
Any other suggestions? Renault as custard creams? Because yellow.
Max Verstappen, who was on the softs, went off at Turn 12.
Been a very bitty day for Red Bull.
Second red flag of the day.
Max Verstappen is in the gravel...
1) Vandoorne 1:19.854 hypersoft
2) Hamilton 1:19.984 medium
3) Vettel 1:20.692 soft
4) Alonso 1:21.113 medium
5) Magnussen 1:21.135 supersoft
6) Sainz 1:21.307 medium
7) Stroll 1:21.793 soft
8) Perez 1:21.973 soft
9) Gasly 1:22.134 supersoft
10) Hulkenberg 1:22.507soft
11) Bottas 1:22.789 medium
12) Leclerc 1:22.808 soft
13) Verstappen 1:23.158 soft
14) Ericsson 1:23.825 supersoft
15) Sirotkin 1:31.979 inters
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The official Formula 1 world championship may not be under way just yet but the Formula 1 biscuit world championship certainly is...
Joel Pambakian: Bourbons the Mercedes of the biscuit world!? He’s clearly not tried chocolate hobnobs..
Matt Caney: Chocolate biscuits are better for cold weather