Postpublished at 14:24 Greenwich Mean Time
The sun is beginning to set as six drivers make their way around the track.
George Russell, Oscar Piastri, Esteban Ocon, Lance Stroll, Nico Hulkenberg and Yuki Tsunoda are all getting in more laps.
Summary
Final day of pre-season testing in Bahrain
Max Verstappen improves lap time to go quickest once again
Ferrari's Charles Leclerc tops morning running
Broken glass on start-finish line and bus in run-off area cause red flags
Oliver Bearman forced to pit after losing part of Haas engine cover
Verstappen in car all day for Red Bull
Season-opening Australian Grand Prix takes place 14-16 March
Get involved: #BBCF1
Postpublished at 14:24 Greenwich Mean Time
Postpublished at 14:19 Greenwich Mean Time
Max Verstappen is out of his Red Bull and talking to his race engineer.
Pierre Gasly is in his Alpine, while the engineers work on his car.
100 laps clocked in for Alex Albon in the Williams and he is back in the garage.
Laps completedpublished at 14:14 Greenwich Mean Time
Oscar Piastri (McLaren) - 41
Lewis Hamilton (Ferrari) - 29
George Russell (Mercedes) - 27
Max Verstappen (Red Bull)* - 62
Yuki Tsunoda (Racing Bulls) - 45
Pierre Gasly (Alpine) - 38
Alex Albon (Williams)* - 99
Lance Stroll (Aston Martin) - 27
Esteban Ocon (Haas) - 51
Nico Hulkenberg (Sauber) - 25
*All day
Postpublished at 14:09 Greenwich Mean Time
Max Verstappen is on a flying lap and goes fastest overall.
He's put in a time of 1:29.844.
Image source, Getty ImagesPostpublished at 14:07 Greenwich Mean Time
Three drivers out on the track at the moment, Alpine's Pierre Gasly and Oscar Piastri in the McLaren and Esteban Ocon in the Haas.
Max Verstappen joins them out on the track.
Top five timespublished at 14:05 Greenwich Mean Time
1. Pierre Gasly (Alpine) - 1:30.040
2. George Russell (Mercedes) +0.014
3. Max Verstappen (Red Bull) +0.103
4. Lewis Hamilton (Ferrari) +0.561
5. Charles Leclerc (Ferrari) +0.771
Postpublished at 14:03 Greenwich Mean Time
We are halfway through the afternoon session now.
Pierre Gasly is the fastest driver out on the track.
Alex Albon and Max Verstappen are on a full day of testing.
Oakes wants Doohan to be given space to settle inpublished at 14:00 Greenwich Mean Time
Chris Medland
F1 journalist in Bahrain
Image source, Getty ImagesAlpine team principal Oliver Oakes has been speaking as the test enters its final stages, and appears relatively encouraged by the car performance so far.
The target is for the team to pick up where they left off last year, finishing strongly to secure sixth place in the constructors’ championship.
Naturally, there were a lot of questions about Jack Doohan’s future, after the signing of Franco Colapinto as a reserve driver last month.
Oakes wants Doohan to be given space to settle in at the start of his rookie season, and wouldn’t set a target in terms of how he compares to Pierre Gasly, but says having quality reserve options does put the team in a strong position this year.
Postpublished at 13:55 Greenwich Mean Time
Verstappen puts in the fastest time in the first sector. He's found his speed and jumps up to third spot, a tenth slower than Pierre Gasly.
Postpublished at 13:53 Greenwich Mean Time
Yuki Tsunoda has been putting in the laps for the Racing Bulls, he's up to 42.
Mav Verstappen has completed a race distance now, clocking in 57 laps.
At the Mercedes garage, George Russell is out of the car and the engineers are busy at work.
Postpublished at 13:49 Greenwich Mean Time
Lewis Hamilton is back out on the track in the Ferrari. He's five tenths behind the fastest time of Pierre Gasly.
Postpublished at 13:44 Greenwich Mean Time
Esteban Ocon has a new set of medium tyres bolted on his Haas and is zooming down the track. 32 laps for him now.
Postpublished at 13:37 Greenwich Mean Time
Alex Albon has been busy on day three of testing.
The Williams driver has been putting in the laps and has banked 93 so far.
Image source, Getty ImagesPostpublished at 13:33 Greenwich Mean Time
Max Verstappen is back out on the circuit, his Red Bull has been sprayed with flow-vis paint on the right side.
Hamilton feeling positivepublished at 13:30 Greenwich Mean Time
Image source, ReutersLewis Hamilton is out on the Sakhir circuit now but before the afternoon session, the Ferrari driver was taking part in the news conference and he told Sky Sports how his pre-season testing is going so far.
"I think the last four years or so, I've learned you probably can't take too much from the first outlook," said the seven-time world champion.
"I definitely think past years before that, particularly in the previous generations of car, it was much easier, I think, to know where you stood quite early on, with that early feeling.
"I would say this is the most positive feeling I have had in a long time. That's all I can really say for now."
Postpublished at 13:27 Greenwich Mean Time
Ferrari's Lewis Hamilton is back out on the track and putting in the laps. He's on a new set of medium tyres.
Max Verstappen is back in the Red Bull garage.
Postpublished at 13:22 Greenwich Mean Time
Max Verstappen and Alex Albon are the two drivers out on the track.
They're both running a full day of testing.
Top five times so farpublished at 13:20 Greenwich Mean Time
1. Pierre Gasly (Alpine) - 1:30.040
2. George Russell (Mercedes) +0.014
3. Lewis Hamilton (Ferrari) +0.561
4. Charles Leclerc (Ferrari) +0.771
5. Oscar Piastri (McLaren) +0.787
Postpublished at 13:16 Greenwich Mean Time
Max Verstappen is back out on the track, it's not a great lap for the Red Bull driver and he looks like he's shaking his head. He goes for another lap.
Postpublished at 13:14 Greenwich Mean Time
Lance Stroll comes in for an Aston Martin pitstop, Yuki Tsunoda's car is having work done to it in the Racing Bulls garage.
Pierre Gasly is on a fast lap and jumps back to the top spot, it's a 1:30.040 for him.