Kvyat fastest in second practice, Hamilton fourth
Red Bulls much improved
Stevens crashes in the Manor, puncture for Sainz
Rosberg fastest in first practice, Hamilton 2nd
Rossi hits the wall late on for Manor
Daniil Kvyat, who looks set to top the timesheet today, is showing good pace on his long runs as he clocks a 1:51.6 on his 10th lap on the supersoft tyre.
Could Mercedes have a fight from the Red Bulls on their hands this weekend?
Can Hamilton be compared to Senna?
Lewis Hamilton's last lap - his ninth on the supersoft - was a 1:51.335 while Daniel Ricciardo, also on long runs, is round in 1:41.546.
Quote Message"Revised lap time target high 51."
Mercedes team radio to Lewis Hamilton
It doesn't look like Lewis Hamilton will finish Friday on top of any of the practice sessions as his focus appears to have switched to long runs.
A rare chance to get a picture of Teenage Mutant Ninja Turtles on this page thanks to Manor...
Jennie Gow
BBC Radio 5 live pit-lane reporter
Quote Message"It is starting to rain down here. There are spots of rain in the pitlane. Meanwhile Felipe Nasr has picked up a reprimand for failing to come on track at the right point in FP1."
Meanwhile, it has been a good day so far for McLaren, with both Fernando Alonso and Jenson Button getting plenty of running without any major drama. Alonso has the eighth fastest time at the moment with 1:46.959, while Button is 14th fastest with 1:47.888.
James Allen
BBC Radio 5 live F1 commentator
Quote Message"It looks as though Kvyat went out again on the supersoft and managed to go more quickly on that original set of supersofts. Hamilton meanwhile has just gone back out on circuit. So is he going out on a long run, or is he, like Kvyat, going out to see if he can find more pace?"
Can Hamilton be compared to Senna?
Daniil Kvyat has turned his Romain Grosjean anger into speed as he goes fastest of all with a 1:46.142. Kimi Raikkonen drops to second, while Daniel Ricciardo is now third.
Tom Clarkson
BBC F1 pit-lane reporter
Quote Message"Kimi Raikkonen does not like simulators but after he made that error at the start of the last race he went and did 100 practice starts on the simulator. That is how motivated he is. A few years back I don't think he would have done that, but he really wants to make this work at Ferrari."
Lewis Hamilton's second go on the supersofts seems him split the Ferraris, a 1:46.479 putting him around three tenths of a second off Kimi Raikkonen's benchmark.
Meanwhile, a hair-raising moment for Daniil Kvyat as Romain Grosjean gets in his way and Kvyat hits the brakes, before raising his hand in frustration.
"BEEP. BEEP," is the sound over team radio as Kvyat embarks on an expletive laden rant against Grosjean.
Image source, Getty ImagesLewis Hamilton's first lap on the supersoft tyres sees him off at Turn 1 and he has to back off his lap. He's having another go now.
Meanwhile, Nico Rosberg's first run on his qualifying sim seems him go third fastest with 1:46.781.
Can Hamilton be compared to Senna
With Lewis Hamilton bidding to equal Ayrton Senna's record of 41 wins from 161 starts this weekend, we are asking if the two can be compared, and if Hamilton can be considered an F1 great.
No he can't. Second fastest for Sebastian Vettel, three tenths of a second down on his Ferrari team-mate.
Image source, Getty ImagesFelipe Nasr, also with supersoft shoes on, goes sixth fastest with 1:47.755, but here comes Sebastian Vettel on his first run on the supersofts. Can he move into P1?