Fernando Alonso is speeding down the track, he's 15th in the leaderboard but can he put in a faster lap time?

Oscar Piastri is in the McLaren garage, looking at his car as the engineers get to work.

Alex Albon has exited the pits and is on an out lap.

Chris Medland
F1 journalist in Bahrain

Image source, Getty Images

Lewis Hamilton might be feeling positive but his new team-mate Charles Leclerc has a few more reservations about the SF-25 after finishing his pre-season.

Leclerc feels the team has a fair bit of work to do to understand how best to set the car up, having enjoyed a good feeling on day one but then not been too happy with the balance during his race simulation yesterday.

The timing of that simulation - with McLaren on track at a similar stage - was seen as positive, however, as Leclerc believes it helps highlight where any deficits might be.

Leclerc is still talking about small differences as well, rather than any glaring gaps. But the expectations are high at Ferrari and they want to be winning both championships this year.

Get well soon Lance, we will see you in Melbourne, Australia.

His teammate Fernando Alonso is now out on the track to get in more laps in the last hour of the afternoon session.

Aston Martin have provided us with an updates: Following an initial session in the car today Lance Stroll subsequently felt unwell.

Fernando Alonso will finish the test today.

Yes, Fernando Alonso is back in the Aston Martin seat.

He clocked in 49 laps in the morning session.

Fernando Alonso is in his full racing gear and waiting at the Aston Martin garage - is he jumping back into the car?

Alonso was called into the morning session, as Lance Stroll was not feeling well.

Stroll, instead, began the afternoon session and completed 34 laps.

Racing Bulls' Yuki Tsunoda may not be the fastest on the leaderboard, but he has been putting in the laps.

57 for him now, a race length at the Bahrain Grand Prix.

1. Max Verstappen (Red Bull) - 1:29.844

2. Pierre Gasly (Alpine) +0.196

3. George Russell (Mercedes) +0.210

4. Alex Albon (Williams) +0.358

5. Lewis Hamilton (Ferrari) +0.501

The floodlights are on and the cars gleam in the light. I just really love a night race.

Max Verstappen has new tyres bolted on and is making his way around the track.

Meanwhile, Alex Albon has put in a flying lap and he goes fourth fastest.

Oscar Piastri is behind Esteban Ocon, but Piastri gets past with the use of DRS. Ocon tried to get his pace back but no luck.

It's like we're at a race.

Esteban Ocon has completed a race length in the Haas, his lap total is 59.

In the Red Bull garage, Max Verstappen is getting ready to head back out on the race track.

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.

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.

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

Max Verstappen is on a flying lap and goes fastest overall.

He's put in a time of 1:29.844.

Image source, Getty Images

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.

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

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.

Chris Medland
F1 journalist in Bahrain

Image source, Getty Images

Alpine 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.

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.