Postpublished at 12:52 Greenwich Mean Time 1 March 2018
We're due to see Lewis Hamilton some point this afternoon but there's no movement in the Mercedes garage yet.
Instead, Sebastian Vettel has ventured out on softs.
Lewis Hamilton finishes fastest
Perre Gasly does the most laps with 147
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Gary Rose
We're due to see Lewis Hamilton some point this afternoon but there's no movement in the Mercedes garage yet.
Instead, Sebastian Vettel has ventured out on softs.
It's McLaren!
Papaya orange clearly proved popular as they took 23% of the votes. Renault finished second on 21.
A McLaren-Renault one-two. Funnily enough, that's what the order is at the top of the timesheet at the moment.
Meanwhile, we've been asking you all week to vote for which of the 2018 cars you think looks the best.
Well, the results are in...
McLaren are enjoying themselves out there today. Just as I'm about to take a bit out of my cheese pasty, Stoffel Vandoorne re-emerges on the track.
He's got it all to himself as everyone else hits the buffet.
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1) Ericsson 79
2) Vandoorne 78
3) Bottas 60
4) Hulkenberg, Gasly 49
5) Sirotkin 47
6) Vettel 45
7) Magnussen 25
8) Verstappen 19
9) Perez 14
1) Vandoorne 1:20.899 hyper-soft
2) Hulkenberg 1:22.507 soft
3) Bottas 1:22.789 medium
4) Vettel 1:23.825 soft
5) Ericsson 1:23.825 super-soft
6) Gasly 1:26.464 inters
7) Verstappen 1:27.362 inters
8) Perez 1:27.426 ultra-soft
9) Sirotkin 1:31.979 inters
10) Magnussen 1:33.514 inters
Right, now is definitely a good time for a rundown of the times.
Stoffel Vandoorne is on the hyper-soft and on that compound he powers to the top of the pile with 1:20.899.
And with that everyone pits for what I assume is an unofficial lunch break.
Kayleigh: Hey, #bbcf1, external , can we get a list of the total laps run for the first week of testing last year vs this year at the end of the session today please?
I'm going to have to go without lunch AND do some maths? Go on then...
Sebastian Vettel is up to fourth on the softs, clocking 1:25.414.
He's three seconds off Nico Hulkenberg's time
Nico Hulkenberg returns to the top with a time of 1:22.729 as Marcus Ericsson, who is on super-softs, does a 1:25.683 to go P3.
Andrew Benson
BBC Sport’s chief F1 writer
Sebastian Vettel is cautiously optimistic about Ferrari's chances this year after his brief experience of the new car so far in Barcelona. He admits that "there has been very limited running so it is very difficult to judge - not just for you, but for us as well.” But he said he had an "initial good first impression with the car" and added: “Mercedes are the favourites. I think it will be close, very close. We see from there. It is a long year and a long time from here to the end of the season.”
Sebastian Vettel - remember him? We've not seen a great deal of the Ferrari man today but he is on the track with softs on.
Nico Hulkenberg also improves with 1:23.462. He stays second as Valtteri Bottas heads in.
It looks like everyone is following Valtteri Bottas and Nico Hulkenberg's lead. Bottas and Hulkenberg are the only two drivers on the track at the moment, with the former improving his timesheet topping time with 1:22.789.
I share your pain!
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Remember, there's no break for lunch today.
We're ploughing right through until 17:00 GMT.
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Another improvement for Valtteri Bottas - 1:24.722 - as Nico Hulkenberg moves into second with a 1:25.104.
Nico Hulkenberg slots in third with a 1:26.604 on the soft tyres as Pierre Gasly clings on to P2 following a 1:26.464.
Pierre Gasly returns to P1 with a 1:27.350. He's still on inters for now.
Meanwhile, Valtteri Bottas kicks things off on the mediums with a 1:34 before improving to 1:27 and then a 1:25.945 to return to the top of the order.