Russian Grand Prix: Free Practice

PROVISIONAL CLASSIFICATION (end of #FP2) The first session @WilliamsRacing have topped in 2015 #RussianGP pic.twitter.com/sZRz4ZqO6b
— Formula 1 (@F1) October 9, 2015

Final timing screen for #FP2. #RussianGP pic.twitter.com/p1VWJT8LEv
— Lotus F1 Team (@Lotus_F1Team) October 9, 2015

Chequered flags are out and Felipe Massa is the fastest in FP2.

Drivers are all struggling for grip with a mix of conditions on track. It's 13C, but that shouldn't be a problem for Finnish Valtteri Bottas and local hero Daniil Kvyat.

Kimi Raikkonen's on the simulator, practicing. RAI, Maldonado, Sergio Perez have not been out this session.

Local hero @Dany_Kvyat posts a 2:01.418 to move into P3 #RussianGP #FP2 pic.twitter.com/DmKGXN5oli
— Formula 1 (@F1) October 9, 2015

ALL POSTED TIMES SO FAR: 1 VES 2:00.806 2 ALO 2:01.077 3 SAI 2:02.805 4 BUT 2:07.812 #RussianGP #FP2 pic.twitter.com/nkNgX1LI2t
— Formula 1 (@F1) October 9, 2015

Several drivers appear to be slipping along the track. Both Toro Rosso drivers - Max Verstappen and Carlos Sainz - have set times, and Force India's Nico Hulkenberg, who topped FP1, is now out on the track.

And LH44 follows NR6 as Lewis Hamilton is out on track now, going through the dry section of the track towards the wet.

So, we just sent Marcus out on track #F1 #FP2 #RussianGP #ME9
— Sauber F1 Team (@SauberF1Team) October 9, 2015

"Turn 2 - 11 is dry, but the rest of the track is very wet" says Bottas to Williams. Nico Rosberg is now out on track.

Alonso's the only driver out on track. He's currently at 2:05.599 as Williams' Valtteri Bottas gets on too. Parts of the track are quite dry.

Felipe...? Felipe? WAKE UP, FELIPE! #RussianGP #FP2 pic.twitter.com/bwYktHDMm2
— Formula 1 (@F1) October 9, 2015

WET TRACK? DRY TRACK? There's a real contrast between some areas of the circuit this afternoon #RussianGP #FP2 pic.twitter.com/MzUfaFfS3I
— Formula 1 (@F1) October 9, 2015

Fernando Alonso is also out on the track. Only two cars - Alonso's McLaren and Ferrari's Vettel currently out of the garage.

Vettel is the only one on an exploratory lap. He's now back out.

The first car is out in FP2 and it's Scuderia Ferrari's Sebastian Vettel. Still the only car on the track, and he's on the full wets.

There's a fair bit of surface water on the track at the moment and the rain is still coming down #RussianGP #FP2 pic.twitter.com/7rkc2Khn9T
— Formula 1 (@F1) October 9, 2015

And McLaren take their car back into the garage as soon as they take it out. Despite the session already being underway, no cars have left the garage.

Nobody likes a wet seat, and McLaren have got a sophisticated system in place to keep Button's dry #RussianGP #FP2 pic.twitter.com/Dx6yM97j0c
— Formula 1 (@F1) October 9, 2015

Green lights go, but nobody moves as the McLaren has left the garage.

Force India's Nico Hulkenberg is on top after FP1 at the Russian Grand Prix and it's raining in Sochi.

PROVISIONAL CLASSIFICATION (End of #FP1) Hulkenberg quickest in a session for the first time this season #RussianGP pic.twitter.com/hThTCoDIQW
— Formula 1 (@F1) October 9, 2015

Serious problems for Red Bull - Ferrari have said NO to supplying them engines. Watch this space..

Grip trouble for both Ferraris - before Vettel takes P2 with a 1:47.551 #RussianGP #FP1 pic.twitter.com/jtLtMippB4
— Formula 1 (@F1) October 9, 2015

TWO TIMES SET SO FAR: ALO 1:53.854 ERI 1:54.272 QUICKEST FP1 TIME IN 2014: ROS 1:42.311 #RussianGP #FP1 pic.twitter.com/AaC77qBU3x
— Formula 1 (@F1) October 9, 2015

Rosberg has the track to himself - all the other drivers back in the garage after their test runs #RussianGP #FP1 pic.twitter.com/seSaYbX7Ub
— Formula 1 (@F1) October 9, 2015

Sebastian Vettel is displeased. He's on track with several others - among them Felipe Massa, Lewis Hamilton and Pastor Maldonado. "What a mess," says Vettel.

First practice saw a half hour delay as a diesel spill on the track was cleaned up. It's still damp, and although the session began, drivers were not allowed to go onto the track.