Rosberg complains about a "very strange" steering vibration at certain corners.
Replays show a huge lock-up for JEV.
Replay of Perez running wide, with Merhi also having a little wobble through Turn 13.
Hamilton seems to be on attack mode as he backs off from a timed lap, lets Sutil go past before starting again.
Button, who has looked so faultless so far today, having a little spin at Turn 7.
Alonso runs wide at Turn 2. Everyone seems to be pushing in these early stages to find the limits of the track.
@RohanMehta: Hard to say, really. They will all have done simulator runs but this is the first 'real-life' run any of them have had.
@IanAU: Nothing at the moment, but quite a few cars on the limit - especially on the ICE.
That said, Red Bull predicted Vettel would be taking an engine penalty at Sochi a few weeks ago.
Alonso's latest time puts him P6.
Alonso three tenths up on Raikkonen.
Hamilton asks to do another full lap, and is told by Mercedes the programme is already getting tight. "I'd like to sacrifice one of my long run laps, please" is the reply. Hamilton clearly one of the drivers testing out the track limits in these opening stages.
There's 23 minutes left in the session, so Hamilton's message clear evidence the teams are planning some longer runs later on. Hamilton is back in the pits, so I'm not sure whether his request was accepted by Mercedes or not. Looks unlikely.
@shailesh640: Hamilton and Magnussen have clocked 323 km/h.
@kamranbilgrami: Well I couldn't give you a definite answer on that because nobody really knows.
Personally, I don't think so either. Don't see a guy like Button ending two years in a non-competitive car by going further down the order.