Get involved - pit stop blunders #bbcf1published at 16:18 British Summer Time 6 June 2015
Thomas Knights: 1999 Nurburgring - Eddie Irvine waiting for an age while Ferrari looked for a fourth tyre, another title challenge hindered.
Hamilton on pole, Rosberg 2nd, Raikkonen 3rd
Bottas 4th, Grosjean 5th, Maldonado 6th
Vettel and Massa out in Q1, Button missed qualifying
Race on Sunday at 19:00 BST
Jamie Strickland
Thomas Knights: 1999 Nurburgring - Eddie Irvine waiting for an age while Ferrari looked for a fourth tyre, another title challenge hindered.
Can't get enough of F1?
Well, you don't have to do without between now and qualifying.
Our dust-covered archivists have been having a rummage and have come up with some classic races from years gone by. Today, it's all about Ayrton Senna.
You can find it on your televisual viewing scanner, selecting channel two, or by using the tabs above.
An odd session that.
The red flags fell badly for Lewis Hamilton and he is unable to put together a complete quick lap. He ends up 20th and last, but read nothing into that.
Conversely, his team-mate Nico Rosberg did find a window in among the red flags to set a lap on the super-soft tyres, and his time of 1:15.660 will boost his confidence heading into qualifying at 18:00 BST.
Nico Hulkenberg: "That's session over, isn't it?"
Just as McLaren fix one problem, another crawls menacingly into view.
This time Jenson Button is the recipient of lady luck's wrath, his car grinding to a halt on the exit of turn seven.
"I had a massive loss of power. We've got a bigger problem here," the Briton says on the radio.
Nico Rosberg sets the fastest time of the weekend so far with a super-soft aided 1:15.660.
Good news for Fernando Alonso. McLaren have completed his engine change and out he goes.
I did a major disservice to the marshals. They've cleaned that mess up in double-quick time and we're green again.
The drivers have around 12 minutes of track time left.
Old Nicodemus: That crash makes you wonder why they have FP3 on the same day as qualifying.
Oliver Bitten: If you weave with DRS open, of course you're going to crash. Rookie error.
Ross Price: First proper mistake in his rookie season. Has been very impressive considering the machinery.
Formula 1 journalist Pablo Elizalde:, external Wasn't there a bigger recovery truck?
Watching a replay of that incident, it looks like Nasr's DRS opened a fraction of a second before he started weaving to get heat into his tyres.
Possibly a contributing factor to the accident but a big error all the same.
Felipe Nasr: "I had a big shunt. The tyres were way too cold."
Oh dearie dearie me, Felipe Nasr.
Weaving to get heat into his tyres on the long run down to the final turn, the Sauber rookie overcooks it and launches the car into the wall.
He's made a real mess of his car and there's debris all over the track. The Brazilian is out of his car and seems OK. He's off for a check over at the medical facility.
This will take a long time to clear up. Maybe even session over.
1 ROS 1:16.783; 2 BOT +0.270; 3 MAS +0.339; 4 VET +0.414; 5 KVY +0.621; 6 MAL +0.790
Andrew Benson
Chief F1 writer
"One of the hot rumours in F1 for the past couple of weeks or so has been that Renault are about to buy back the Lotus team and become team owners again. Two weeks ago in Monaco, I wrote here that one source had said he thought the deal might already have been done.
"This is what Lotus CEO Matthew Carter said on the subject on Friday, from which you can draw your own conclusions: 'I continue to say the same thing. The shareholders have told me that the company isn't for sale. I think I've said in the press before that everything is sale for a certain price. That's as much as I can say. I continue to reiterate that we signed a long-term contract with Mercedes Benz (as engine supplier) and as far as we're concerned we just continue down that route. That last information I heard was that we were going to be sold by the end of May but we're still here and we're still the same team.'"