The track is open but, unsurprisingly, there is no movement as the rain continues to come down. 

Waterproof ponchos are being put on and umbrellas swiftly put up in the stands at Sochi because the rain has just got a little heavier.

Poor DC looks like he got caught out by the downpour here...

Fernando Alonso provided much of the early entertainment in first practice with some good laps, but he goes into this weekend having already accumulated a 25-place grid penalty.

Honda have invested their four remaining 2015 engine development tokens on revising their engine for this weekend's race. Alonso's McLaren team-mate Jenson Button escapes any penalties for Sochi because there were not enough updates for his car. 

Roberto Merhi is also hit with a grid-place penalty, taking a 20-place drop thanks to some unscheduled changes to his Manor's engine.

Romain Grosjean wants the rain, he might just get his wish...

Image source, Getty Images

This may be Daniil Kvyat's home race, but the actual circuit is located a fair old distance away from where he is from. His home city of Ufa is 1,700km away from Sochi - the equivalent distance of Rome from London.

James Macdonald here raising the stakes with this detailed circuit design. 

Andrew Benson
Chief F1 writer

“Well, what an unholy mess Red Bull find themselves in over engines for next year. The latest development in a long-running saga is that team boss Christian Horner has told Germany’s Auto Motor Und Sport that Ferrari are prepared only to supply engines to Toro Rosso and not Red Bull next year. Which leaves Red Bull without an engine. 

"Technically, they have a contract with Renault until the end of next year, but privately both organisations had made it clear over the last few weeks that the relationship was over - a decision that was reached during the summer. However, Mercedes made it clear last month they were not prepared to supply them. So, assuming the Ferrari information is true, Red Bull are in a bit of a bind. 

"Boss Dietrich Mateschitz has said he will pull the teams out of F1 if they do not have a competitive engine. But there are now whispers that Red Bull could end up staying with Renault after all.” 

Intriguing...

Image source, BBC Sport

Missed first practice? You can watch the highlights here.

Second practice is set to get under way at 12:00 BST and will last for 90 minutes, and you can watch it on Red Button. 

If you tune into BBC Two expecting to watch it, you'll most likely end up with 1980s detective Jim Bergerac pulling facial expressions displaying mild exasperation on your television screen.

Good to see the programme is keeping with the Russia-theme with today's episode titled "See you in Moscow", but it is all about Sochi for us today Bergerac...

Hello and welcome to our coverage of second practice for the Russian Grand Prix. 

There was not much running in first practice after the diesel spill, and signs are not great that we'll see much more this afternoon.

No rain is expected this weekend and, at the moment, dark, foreboding clouds are looming large over the circuit, with rain expected to fall sometime during the session. 

I think it is time to get out the notepad and doodle some circuit designs...

With Lewis Hamilton suggesting in his latest BBC Sport column that he would like to have a go at designing a circuit, we have been asking for you to send us sketches of your dream circuit, and let us know where it would be, via #myidealcircuit, external.

Can't send us picture? Not to worry, we'll still welcome your descriptions of your ideal circuit via text on 81111 (UK only) and on the BBC Sport Facebook page.

Image source, Getty Images

The Russian Grand Prix weekend got off to an unusual start as a diesel spill from a sweeper truck hampered teams' running in first practice. 

It resulted in an unfamiliar outcome, Nico Hulkenberg topping the session and Lewis Hamilton - dominant throughout the race weekend in Sochi last year - spinning late on.

With the diesel spill (hopefully) long since dried, will FP2 have a more familiar feel to it?

Progress on Red Bull's engines for 2016 [see Lee McKenzie's entry]? We'll see if there is more on what was said in that meeting when we return for build up to second practice at 11:30 BST, with the session itself getting under way at 12:00. 

Don't forget that second practice will be on RED BUTTON, don't stick BBC Two on because all you will see is Bergerac, possibly posing in a fetching red Golf GTI like in the picture above. A treat for the eyes...

Lee McKenzie
BBC F1 pit-lane reporter

"When we were speaking to Christian Horner about 90 minutes ago he was meant to go on to the pitwall, he was taken into the Red Bull hospitality by Bernie Ecclestone and they have just finished talking. It was Christian, Helmut Marko and Bernie in a big meeting. When Bernie came back out he gave David a nod, a wink, and a thumbs up."

I'm sure your neighbours would love you if this happened...