Mike Crawshaw: Greatest car liveries: 7up Jordan 1991,  

Kenny Stoltz: Gulf Racing LeMana, Marlboro McLaren, John Player Lotus, Shadow, maybe Jordan 7up 

We're very much into long runs territory now so not a great deal to report from on the track until we see a few lap times.

For now, let's all just sit back and admire this chap's hair.

Magnificent.

Image source, F1.com

Sebastian Vettel is onto the supersofts as we head into the long run phase of this session.

Image source, AP

Fernando Alonso, currently P12, is on the ultrasofts now so we should get to see what the McLaren's pace looks like heading into the final half hour of the session.

1) Lewis Hamilton 1:23.620

2) Sebastian Vettel 1:24.167

3) Valtteri Bottas 1:24.176

4) Kimi Raikkonen 1:24.525

5) Daniel Ricciardo 1:24.650

6) Max Verstappen 1:25.015

Image source, Getty Images

Lookingspiffy: Some fave liveries: '76 Martini Brabham, '91 Ferrari, '94 Pacific, 2010 Renault. There are more but it's 5am & I can't brain.   

Now the Red Bulls have bolted on the ultrasofts but they are nowhere near the Mercedes. 

Daniel Ricciardo goes fifth fastest, a second slower than Lewis Hamilton before Max Vertstappen has a right old moment at Turn 12, flying into the gravel trap but he shows off his racecraft by keeping it together. Could have been much worse. 

Better from Kimi Raikkonen as he does a 1:24.601 to move into fourth, 0.9s down on Lewis Hamilton. We are still waiting to see what the Red Bulls can do on the ultrasofts.

Scruffy lap by Kimi Raikkonen as he runs wide at Turn One, ending up through the grass. He's currently fifth fastest.

Valtteri Bottas goes quickest with a 1:24.176 but once again Lewis Hamilton finds half a second more than his team-mate. Hamilton is really putting down a marker. He's in no mood to play second fiddle to anyone this season.

Image source, Getty Images

Impressive stuff from Max Verstappen! He rattles off a 1:25.013 to go P2, 0.087s slower than Sebastian Vettel but the Dutch teenager is on supersofts while Vettel is on ultrasofts.

Image source, Getty Images

Hugely frustrating for those drivers, which included Lewis Hamilton, who were on a quick lap before the yellow flags were waved.

Meanwhile, Romain Grosjean again finds himself running wide, this time at the exit of Turn Three as he skips across the gravel.

Yellow flagpublished at 05:37 Greenwich Mean Time 24 March 2017

05:37 GMT 24 March 2017

Yellow flags as Felipe Massa comes to a stop on an exit road at Turn 10. He climbs out of the Williams as some marshals scurry over to wheel it off the track. It appears he had a gearbox problem.

Image source, Rex Features

We're back under way with a touch under one hour left on the clock. Max Verstappen is straight out on the track.

Several drivers have made the switch to ultrasofts, including Lewis Hamilton, Sebastian Vettel and Felipe Massa. Qualifying runs coming up.

Image source, Getty Images

Marc Shotton: In Cairns diving on the great barrier reef and following practice inbetween dives!  

Tough life, Marc, tough life.