Hello and welcome to our LIVE coverage of FP3 for the Brazilian Grand Prix, starting at 1pm UK time.

That is the end of the final free practice session for the Brazil GP - Button was quickest in the end with Vettel's late burst putting him second. Webber was third, Hamilton fourth and Grosjean and Di Resta shunted down after the big guns improved late on. Alonso back in eighth after an unhappy spell on the mediums. We'll be back at 4pm for qualifying!

Vettel snuck out for a final lap and well done to the Red Bull man - he moves second, a tenth or so off Button.

Hamilton's final lap is quick but not quick enough - he left it a bit late in the end and has to settle for fourth, 0.2s off Button.

Hamilton's second lap on the mediums is all right, 0.34 off Button and in fifth. Webber is second from Button, with Grosjean and Di Resta third and fourth entering what should be the final lap.

Alonso now pits as he seems to admit defeat in this late run on the mediums. He's seventh!

Vettel is stuck in the garage. Will he come back out or does he know all he needs to know?

Hamilton's first go on the mediums is slowish but he's just getting himself ready, he has three more shots at least. Vettel follows suit with a conservative opener.

Webber does move second with 1:13.385 but Hamilton, Alonso and Vettel should better that.

Yup Button posts a 1:13.192 with Grosjean tucking in behind... Webber going well now, he could sneak into second...

So Hulkenberg now tops the timesheets after doing a 1:13.623, with Di Resta edging ahead soon after. Button and co will smash that though.

Pretty much everyone is out now, less a qual simulation, more racey given the traffic.

Button and Alonso are out - Hamilton and Vettel to follow soon. Expect them to be there or thereabouts.

Starting off with the qualifying simulation runs - the top six are waiting a touch before hitting the track.

Everyone is getting the medium tyres on for what should be an entertaining burst of pace to close this session.

The weathermen announce there will be no rain at all this session, despite the clouds. Whoop.

Still just Rosberg and Shumi for Mercedes using the medium tyres, and doing well off them. Vettel and Webber return to the pits though, could see a change from the hards.

Vergne is having issues with his front suspension. He's back in 17th now, a good 1.5s off the pace.

The upper end of the timesheets is being jostled for the first time in a while as Rosberg uses the medium-softs to good effect in moving fifth ahead of Alonso and Webber.

Senna had gone a touch wide after coming uphill round the corner, fortunate there was no contact. Schumi improved again and is now eighth.

Senna has a bit of a spin wih Schumacher in close attendance. Hairy.