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Summary

  1. Mercedes' Bottas posts quickest time of week so far
  2. Ferrari remain Mercedes' nearest challengers
  3. Williams rookie Stroll hits barriers - his third accident in two days
  4. Get involved: #bbcf1

Live Reporting

By Jamie Strickland

All times stated are UK

Get involved

  1. Time to drive off into the sunset

    .

    Another day of pre-season ticked off. Just one more to go this week.

    Mercedes and Ferrari remain joined in battle at the head of the standings, but it remains too early to draw any firm conclusions on which of them has the edge.

    Elsewhere, Renault have shown good speed, McLaren's reliability is improving even if their pace isn't, and Williams will be hoping rookie Lance Stroll can quickly get to grips with the FW40 after three accidents in two days.

    Andrew Benson's full report will be live on the site shortly, and we'll be back with you for coverage of day four from 07:55 GMT tomorrow. 

  2. Post update

  3. Final times

    1 Bottas   Mercedes   1:19.705 75 laps Ultrasoft

    2 Vettel   Ferrari   1:19.952 139 Soft 

    3 Ricciardo   Red Bull   1:21.153 70 Soft 

    4 Palmer   Renault   1:21.396 51 Soft 

    5 Hulkenberg   Renault   1:21.791 42 Soft 

    6 Ericsson   Sauber   1:21.824 125 Supersoft 

    7 Hamilton   Mercedes   1:22.090 95 Soft   

    8 Grosjean   Haas   1:22.118 56 Supersoft 

    9 Stroll   Williams   1:22.351 98 Soft

    10 Alonso   McLaren   1:22.598 72 Ultrasoft   

    11 Sainz   Toro Rosso   1:23.540 32 Medium 

    12 Celis Jr   Force India   1:23.619 70 Soft 

    13 Kvyat   Toro Rosso   1:23.952 31 Medium 

  4. Chequered flag

    The Mercedes of Valtteri Bottas finishes quickest of the third day of pre-season testing.

    Full times to follow.

  5. Green flag

    Four minutes to go.

  6. Red flag

    The Ferrari of Vettel slows to a halt on the pit straight.

    That's the Scuderia's first mechanical issue of the week.

  7. Get Involved

    #bbcf1

  8. Day over for Renault

    A good day for the Enstone guys and gals. P4 and P5 as it stands after sharing the car between their drivers today.

  9. Post update

  10. Latest standings

    1 Bottas  Mercedes  1:19.705 75 laps Ultrasoft

    2 Vettel  Ferrari  1:19.952 126 Soft 

    3 Ricciardo  Red Bull  1:21.153 67 Soft 

    4 Palmer  Renault  1:21.396 51 Soft 

    5 Hulkenberg  Renault  1:21.396 42 Soft 

    6 Ericsson  Sauber  1:21.824 117 Supersoft 

    7 Grosjean  Haas  1:22.118 50 Supersoft 

    8 Hamilton  Mercedes  1:22.216 83 Soft   

    9 Stroll  Williams  1:22.351 98 Soft

    10 Alonso  McLaren  1:22.598 72 Ultrasoft   

    11 Sainz  Toro Rosso  1:23.540 32 Medium 

    12 Celis Jr  Force India  1:23.619 63 Soft 

    13 Kvyat  Toro Rosso  1:23.952 31 Medium 

  11. Post update

    Down at Renault, Nico Hulkenberg has put on a set of soft tyres and does a 1:21.791. He's now in fifth.

    The two Renaults are best of the rest after Mercedes, Ferrari and Red Bull as things stand.

  12. Day over for Williams

  13. It's like Bernie is still with us...

    Ross Brawn, the new sporting director of Formula 1, would like a non-championship race inserted into the calendar where organisers could experiment with new formats and rules.

    It's the gossip.

  14. Post update

  15. Post update

  16. Post update

  17. Get Involved

    #bbcf1

  18. Post update

  19. Who, what, where, when - the answer

    Yes, yes. I make these far too easy.

    As 90% of you correctly told me, this is Michael Schumacher and Jean Alesi having a natter at the end of the 1997 Canadian Grand Prix, a race cut short by a leg-breaking crash for Olivier Panis. 

    I promise to make tomorrow's harder. I will set my Getty Images search parameters to the 1950s.

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  20. McLaren and Honda deny split rumour

    Dan Knutson

    F1 journalist in Barcelona

    McLaren’s Racing Director Eric Boullier and Honda’s F1 chief Yasuke Hasegawa have just had a sit-down meeting with the media.

    I asked if they could put to rest the rumour making the rounds on the internet that McLaren and Honda will split.

    “We are supposed to ditch Honda?” Boullier asked. “No. There is no plan at all.”

    Hasegawa added: “Of course not.”

    Asked about the problems encountered so far this week, Boullier said: “We had many issues. I think no one is obviously fundamental. All of them are fixable. I am not sure we know all of them yet, even Hasegawa-san, because yesterday’s engine is on the way to Japan. 

    "Today finally we can run, so have some other glitches, the usual ones you get on day one. But we have them on day three.”

    The problem with Stoffel Vandoorne's engine on Tuesday – the one that is now being flown to Honda’s factory in Japan – should be known on Thursday.

    .