Summary
Kvyat fastest in wet second practice, Hamilton third
Hamilton says he learned "diddly squat" from practice
Verstappen escapes gravel trap
Sainz fastest in wet first practice
Japanese GP live across BBC TV, radio & online
Postpublished at 07:05 British Summer Time 25 September 2015
Postpublished at 07:01
The rain is coming down harder now and Marcus Ericsson has a moment at the second corner, losing the back of his Sauber. After a 1:55.658, a time four seconds slower than his best of the session, he heads back in.
Thirty minutes left.
Postpublished at 06:58
Marcus Ericsson, with full wet tyres on his Sauber, heads back out to break the silence.
Postpublished at 06:56
It is all quiet on the circuit as the drivers head into the pits. It hasn't been the most exciting of days for the fans in the stands...
Postpublished at 06:53 British Summer Time 25 September 2015
Postpublished at 06:51
"I cannot see anything with this spray," says Carlos Sainz over team radio.
"OK Carlos, box this lap," is the reply.
A frustrating day of practice so far, with little to be learned with dry conditions forecast for much of the weekend.
Image source, Getty ImagesPostpublished at 06:49
Image source, Getty Images"OK there is quite a lot more rain now," says Sebastian Vettel as he briefly pops his hand out of the cockpit. Waving to fans or checking the rain?
He goes on to clock a 1:50.268, the fifth fastest time so far.
Postpublished at 06:44 British Summer Time 25 September 2015
Postpublished at 06:44
Daniil Kvyat is back into P1 with a 1:48.227, just 0.023s quicker than Nico Rosberg.
Postpublished at 06:42 British Summer Time 25 September 2015
Postpublished at 06:41
Waterproof ponchos aplenty in the stands as the rain starts to get a little heavier. The changing conditions are having an impact on the track too, as Max Verstappen finds himself briefly off the track again, this time at the hairpin.
Postpublished at 06:38 British Summer Time 25 September 2015
Postpublished at 06:38
Eighteen of the 20 drivers have completed at least one timed lap now, just waiting for appearances from Valtteri Bottas and Fernando Alonso.
Postpublished at 06:37
Missing screw located, Max Verstappen is back out on the circuit but looks to tackle the final chicane with too much speed and runs wide.
"Massive understeer," he complains over team radio.
Image source, BBC SportGet involved #bbcf1published at 06:34 British Summer Time 25 September 2015
Postpublished at 06:32
Just under one hour to go and Nico Rosberg tops the timesheet ahead of Lewis Hamilton, Daniel Ricciardo, Daniil Kvyat and Sebastian Vettel.
Image source, Getty ImagesPostpublished at 06:31 British Summer Time 25 September 2015
Postpublished at 06:30
As well as Fernando Alonso, Felipe Massa and Valtteri Bottas are yet to make an appearance on the circuit in this session.
Rain returning?published at 06:29 British Summer Time 25 September 2015
Postpublished at 06:28 British Summer Time 25 September 2015
Jennie Gow
BBC Radio 5 live pit-lane reporterQuote Message"Unfortunately McLaren have found some anomalies in the engine and power unit at the end of FP1 in Alonso's car and in the break between sessions they have done an engine change, it is back to another one, it is not using a new one and they hope to get him out in the next 20 minutes or so."