Summary

  • Third and final day at Circuit de Barcelona-Catalunya

  • Two sessions: 08:00-12:00 & 13:00-17:00 (GMT)

  • Haas - who have Russian-based sponsor - run all-white livery

  • Lando Norris fastest on Wednesday, Charles Leclerc quickest on Thursday

Live Reporting

Gary Rose

  1. Breaking

    George Russell finishes fastest in the morning session of the final day of the first test.

  2. While we wait for the outcome of the session there's some breaking news to bring you...

  3. red flag

    Red flag

    ANOTHER red flag right at the end of the session.

    It is for Sebastian Vettel this time.

  4. Look who's here...

    Seven-time world champion Lewis Hamilton is due on the track in the Mercedes this afternoon...

    Lewis HamiltonGetty Images

  5. Green light

    Short and sweet as the track is open again with 12 minutes to go.

  6. Alpine done for the day

    Alpine have issued an update on the problem that has led to Fernando Alonso spending most of his morning in the garage, and say that it has brought an early end to testing for them:

    "After further investigations in the garage following Fernando Alonso’s on-track stoppage earlier this morning, the team can confirm the issue was a problem with the hydraulics. A minor sealing issue led to a fire in the back of the car.

    "The team has successfully completed 266 laps during the three days of the Barcelona shakedown. Repairs on the car will continue, and as a result we won’t be running for the remainder of the day. We look forward to be back in action at the next test in Bahrain."

    Fernando AlonsoGetty Images

  7. Guanyu Zhou has come to a stop on the main straight just moments after going back out.

  8. red flag

    Red flag

    Spoke too soon.

  9. Guanyu Zhou is back out already after coming to a stop around 30 minutes ago.

    He can get 20 more minutes in the bag before the end of the morning session.

  10. Fastest of the week

    That's also the fastest time of the week so far by George Russell, who set it on the softest compound of tyre.

  11. George Russell is determined to finish this session fastest and he does a 1:19.233.

    He's also done more laps than any other driver this morning with 61 so a productive session for Mercedes.

  12. Get involved

    #bbcf1 or text 81111 (UK only - texts charged at standard rate)

    Stephen Taylor: With Kimi now having retired I am now hoping McLaren and particularly Lando can have a good season. Hopefully he can nab that first win. A title challenge for Lando would a dream but I am trying to manage my expectations as toppling Red Bull, Merc and Ferrari be hard.

  13. Clearly folk want to get some laps in before lunch as Lando Norris, Max Verstappen and Sebastian Vettel are immediately back to it.

  14. Green light

    Guanyu Zhou's Alfa Romeo has been shifted from the track so we are all go again with 38 minutes to go until we can all grab a bite to eat.

  15. Andrew Benson
    BBC Sport’s chief F1 writer

    No clarity from Haas on Mazepin/sponsor. Team boss Gunther Steiner says he will "work on" the situation "next week".

    Is it worth sticking with the Mazepins, given the situation and his performance? “There are legal issues we have to go through and then we see what comes out.”

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  17. Time for the times

    And here are the latest times... the next full timing update will come at the end of the morning session.

    1. George Russell (Mercedes) 1:19.608 – 56 laps
    2. Max Verstappen (Red Bull) 1:19.756 – 46 laps
    3. Charles Leclerc (Ferrari) 1:20.308 – 31 laps
    4. Sebastian Vettel (Aston Martin) 1:20.685 - 34 laps
    5. Nicholas Latifi (Williams) 1:20.699 – five laps
    6. Lando Norris (McLaren) 1:20.827 – 38 laps
    7. Fernando Alonso (Alpine) 1:21.242 – 12 laps
    8. Guanyu Zhou (Alfa Romeo) 1:21.939 – 37 laps
    9. Pierre Gasly (Alpha Tauri) 1:22.469 – 40 laps
    10. Alexander Albon (Williams) 1:22.652 – 21 laps
    11. Nikita Mazepin (Haas) 1:26.229 – nine laps
  18. red flag

    Red flag

    Another red flag, this one appears to be for Guanyu Zhou stopping.

  19. Chris Medland
    F1 journalist in Barcelona

    The second red flag of the day is a first of sorts. Pierre Gasly has gone off and hit the barrier at Turn Five, and is the first driver to have an incident that costly this week - every other red flag so far has been caused by a technical issue. The front end of the car has been damaged.

    The Frenchman had just left the pits and was on an out-lap, and both front wheels appear to be a little skewed, so it remains to be seen whether it was driver error or a car problem.

  20. Green light

    And indeed we are good to go again with an hour of the morning session left.