@MjSamaco: Yes indeed. Certainly a power circuit....
@VenkatMani: It's always hard to tell what a circuit is like just from the circuit map. The last sector is a twisty straight, basically, a bit like Turn 1 at Sochi, which will be interesting to watch just because it goes on for such a long period of time.
@alonsogod: Ricciardo hardly seems like a youngster anymore. This year he's shown he has the mettle to be a team leader.
Alonso's latest lap sees him climb above Kvyat into 7th. Vettel finally gets a lap hooked together and goes ninth, seventh tenths quicker than Ricciardo.
@Thebass: Seems like he will be taking a five-place penalty for a gearbox change, yes.
Ericsson has turned a corner recently and is currently ahead of Kobayashi by four tenths. He reports "car feels good, very improved".
I'm going to rain on McLaren fans' parade here slightly and remind you we don't know what fuel loads their driver has. A few theories going around that this is down to McLaren's impressive simulator - the simulator they throw a lot of money at, it may be paying dividends today.
Alonso has clambered up to P3 with his latest time on the soft tyre. He's quite something, isn't he.
That time is still nearly a full second down on Hamilton, however.
Everyone but Ericsson out on track now.
And as I say that, Alonso makes his way back into the pits.
The drivers are now setting about on their longer runs on these soft tyres, which will give them some idea of race strategy for Sunday.
Hulkenberg tells Force India: "With the DRS open I couldn't even overtake a Caterham! Unbelievable."
Uh-oh Phil. You don't want to go starting the old Alonso/Hamilton debate...
"Jenson, that pace now comparable to the Mercedes", so more encouraging signs from McLaren, though their runs are a little bit longer than the Mercedes drivers currently. Encouraging nonetheless.
@Arqam: It seems he's struggling to find an optimum set-up again.
Button runs very, very deep into Turn 11 and reports a big flat-spot to McLaren. He'll return to the pit lane.
We're now into the final nine minutes into the session.
Perez currently quickest through the speed trap at 326km/h.
Ricciardo has slowed down on the long back straight and the yellow flags are out on track. He's stopped at an awkward part of the track, too.
Red flags, unsurprisingly, after the events of last weekend. Ricciardo's car in a position which is impossible to recover in a safe manner. Creates the possibility of a lot of safety car periods on Sunday.
He's not that far away from another recovery point, probably about five metres away from a place the marshals could wheel his car to.
Ricciardo on five elements on four of his six components. With Vettel likely to take a penalty this weekend, Ricciardo may well be taking one as well. With Red Bull struggling here it wouldn't be a disaster to take those penalties here.
Remember the clock keeps ticking in red flag situations and it approaches the five-minute mark.
@mickb: It may not be. The marhsals have removed the car in a matter of seconds, but not difficult to see why that would have been unsafe to remove even in double-yellow situation.