Yellow flagpublished at 10:29 British Summer Time 7 July 2017

10:29 BST 7 July 2017

If I had a pound for every time a Toro Rosso has been off track in this session...

I'd have, er, £4.

Carlos Sainz gets in very wrong into Turn Ten and takes to the run-off.

Max Verstappen has broken the Mercedes one-two at the front, he posts a time three tenths slower than Hamilton, although the Red Bull man was on the ultrasoft and Hamilton the supersoft.

Another off-track moment for Hamilton, who snags a brake into Turn Three. Again, no real drama.

Turn One catches out another driver. Lewis Hamilton runs wide but continues unscathed.

Only practice I know, but those hitherto dismal McLarens are actually faring OK in this session.

Vandoorne is in P7 on a 1:07.283, four tenths off Raikkonen, while team-mate Alonso is in ninth on a 1:07.510.

Reasons for optimism?

That early spin and flat-spotted tyres put Raikkonen a little on the back foot in this session.

He's slowly coming back and has improved to fifth place on a 1:06.848. He's four tenths of team-mate Vettel.

Image source, Getty Images

Kayleigh: Grew up in Northampton. Everyone, even non F1 fans, knows when it's time for the Grand Prix. It can't leave Silverstone.

Ben Ashcroft‏: A street circuit in London would be appalling. The British GP needs to be on a proper track - preferably Silverstone.

Stuart Hawkins: ‏Feasible to go to a different track each year? By that I mean proper track, not a temporary street circuit.

We have a new leader, Lewis Hamilton does a 1:06.329 to move 0.16s ahead of Bottas.

Mercedes one and two, but just two tenths clear of Ricciardo's Red Bull in third.

Image source, Reuters

Yellow flagpublished at 10:08 British Summer Time 7 July 2017

10:08 BST 7 July 2017

My 'yellow flag' button is getting a good work out today.

Our leader Valtteri Bottas spins it in Turn One. As all before him, he gathers it up and continues merrily on his way.

Yellow flagpublished at 10:05 British Summer Time 7 July 2017

10:05 BST 7 July 2017

The Haas of Romain Grosjean has picked up a puncture after going heavily over the kerbs in the final couple of turns. He's got a very flat front-left tyre and is dragging the underbelly of that car along the ground, sparks flying.

Meanwhile, Daniil Kvyat spins the Toro Rosso into Turn 10.

Yellow flagpublished at 10:01 British Summer Time 7 July 2017

10:01 BST 7 July 2017

Carlos Sainz is the latest driver to lose it in Turn One. He rights his Toro Rosso and gets on his way. A bit like Vettel's incident earlier.

Image source, Getty Images

The cars are back on track.

Valtteri Bottas is now the quickest driver out there on a 1:06.445 - a time set on the supersoft.

He's 0.081 ahead of team-mate Lewis Hamilton, who set his time on the ultrasoft.

While all the cars are in their garages, I thought I'd take this opportunity to share a nugget of F1-related info that I learned yesterday that blew my tiny mind.

The DAD of two-time GP winner Peter Revson, who was killed aged 35 while testing in South Africa in 1974, only himself died in June 2016!

Martin Revson, a key player in the formation of the Revlon cosmetics empire, died in America in his 106th year. An impressive innings.

That's up there with the mindblowing fact that US president John Tyler, who served from 1841 to 1845 and was born in 1790, still has two surviving grandsons., external

Image source, Getty Images