Afternoon everyone, it's getting dark in Singapore, and we're ready for the final practice session before qualifying.

The weather is being mischievous - and it's all poised for a fascinating qualifying session.

Senna out of the car safely.

Time up! It ends in anticlimax, but it does set it up nicely for later. We just don't know how quick the cars are at their best. But we only have a couple of hours until we find out.

Yes, the time is ticking away, the stewards aren't running to Senna, and that's the end of the quest to be fastest.

Yellow flag is out - Bruno has spun - and that might have ruined the last chance of hot laps at turn 15.

Button improves his time - but he's only 13th.

Alonso second - six-tenths down. One lap left.

Vettel fastest 1:48.028 - Webber not on the pace at all by comparison.

Trulli shown having a struggle through the chicane, as is Buemi - it's going to be tricky for all the racers.

Rosberg and Schumacher are out - just four men left in the pits.

Senna and Klien improve, but they're still lagging behind the field.

Right - here they come - Hamilton, Vettel, Webber - all out on option tyres.

The two Hispania drivers are out - both well over a second behind after the first sector. Not looking good.

Final ten minutes - does anyone else want a short final run?

Top 12 racers are in the garage, including Rosberg, who had just gone tenth.

Vettel improves to a 1:48.350 - he's looking sharp - will his team-mate bridge the gap?

Schumacher misses turn 1 and 2, and finds a nice straight route instead...

Rosberg spins off in the third sector - it's yellow flag for the briefest of moments. I won't use the icon since it's already been lifted...

Top ten as we get into the end of the session: Vettel, Alonso, Hamilton, Webber, Hulkenberg, Massa, Kubica, Sutil, Massa, Button

Kubica and Alonso very nearly collide as the Ferrari emerges from the pit!