Good morning and welcome to live coverage of the final free practice session ahead of the Korean Grand Prix. One final hour for the teams to attempt to perfect set-ups on an ever-evolving Yeongam circuit, and in the case of Red Bull to try and get on terms with McLaren and Ferrari in race trim

That's right, Sebastian Vettel and Mark Webber may have topped the FP2 timesheets as Red Bull displayed impressive one-lap pace but it was Alonso who was quickest ahead of Massa and Button on the long runs. Interesting...

If you based it on yesterday's long runs, these are the two teams to beat. But we didn't see Lewis Hamilton complete a long run as he really struggled in FP2, and you'd expect Red Bull to make further progress today

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So, if you want to get in touch with us here at ESPNF1 during this hour-long final session you can do so in one of two ways. Either email us using the link above, or tweet us @ESPNF1

As mentioned a little bit earlier, Hamilton didn't complete a consistent long run, and that came after he set a best time that was 0.6s down on his morning mark. He admitted that he was perplexed by his issues but is confident that Button has shown the pace is there

Lotus was testing new parts during Friday practice - most notably a Coanda-effect exhaust system - and we're expecting to see those parts remaining on Raikkonen's car today. There was only one set of upgrades available, but Grosjean should be able to look forward to getting his own in India

Following FP2 it emerged that Michael Schumacher had been reprimanded for blocking both HRTs during Friday practice. Not a big issue in isolation, but it is Schumacher's second reprimand after a similar incident with Hamilton in Spain, and a third reprimand this season would come with a 10-place grid penalty

Rosberg was also investigated by the stewards for impeding Maldonado during FP2, but no action was taken. It would have been harsh to penalise a driver for such a slight indiscretion during practice

We're all set for another dry day in Korea, with the sun having broken through and current air temperature up at 19C. The track evolved rapidly yesterday with all the dry running going on, but it should stabilise somewhat today

Engines are firing up and we're almost ready to go again this morning. In fact there's already someone trundling down the pit lane...

And it was the Caterham of Kovalainen, who is straight out on track as the light goes green

Vettel launches away out of the pit lane followed by two fellow world champions in the form of Raikkonen and Schumacher

It's just installation laps at present, but Raikkonen is already told to look after his tyres: "Please look after that front right especially, this could be a qualifying and race set..."

Only Kobayashi yet to head out this morning, while Schumacher does two installation laps

Some overnight news for you while the track is quiet - Charles Pic will take a 10-place grid penalty after changing his engine overnight. That's his ninth engine he's now using, although it's not likely to hurt him any more than half of those ten places on the grid

Hulkenberg says he's a bit unhappy with some brake judder experienced on his installation lap. Lots of work going on in the garages up and down the pit lane, but none on track...

Petrov also says he has brake vibration and there's plenty going on around his brakes in the Caterham garage

‏@Marussia_F1Team on Twitter: "Following an installation lap apiece, checks completed on both cars and we are almost ready for more track action"

As you can imagine, there's little action elsewhere when the cars aren't on track. Very empty grandstands and fields out to the sea are all that surround the circuit. Fortunately, Raikkonen heads out on track to continue working on the new Lotus exhausts

Ricciardo joins Raikkonen on track

Raikkonen pushing relatively hard on his out lap on soft tyres. Drivers will have to work a bit harder to warm the tyres up today as temperatures are a bit lower than yesterday

Raikkonen begins a flying lap, with Vergne, Pic and Maldonado having joined him and Ricciardo on track

Robert emails: "I just saw an update on my F1 android app saying Pic for Marussia has replaced his 9th engine when drivers are only allocated 8 per season, what's the go here?"

It's actually that Pic is using his ninth engine rather than having replaced his ninth, but that's why he has a 10-place grid penalty - for exceeding the eight allowed engines per season

Ricciardo almost losing the rear in turn 15 and sliding sideways through the corner. Not quick but it looks good

Raikkonen is quickest at this stage with a 1:39.747 - 0.535s ahead of Maldonado

Vettel goes second with a 1:40.017 and the fastest final sector for good measure

Rosberg is told to "avoid weaving directly in front of other cars" by his team on the radio. Seems obvious, that one...

Raikkonen improves to a 1:39.711, with Grosjean now second on a 1:39.878

The quickest time of FP2 was a 1:38.832 set by Vettel

Neither McLaren or Ferrari has been out since its installation lap yet. Not unusual for Ferrari but a slightly different approach from McLaren, and must mean Hamilton is happy enough with the progress made overnight

Vettel pumps in a clear lap to go fastest with a 1:39.086

Grosjean up to second with a 1:39.702

Senna is told to pit because "we've got big front wing problems"

Alonso heads out in the Ferrari - he looks more competitive than he has been for a while this weekend

As Kobayashi goes 10th, James emails in to say: "It is surprising that no significant Japanese sponsor has stepped forward to support Kobayashi. He has been unlucky this yr. Victim to Grosjean. Victim of Maldonado, Victim of Senna. A few times victim of Sauber. A couple of times victim of himself. ... He is a racer, as we saw again last week in Jpn. The biggest Japanese sponsorship is Nissan -Infiniti. But they are Renault, Red Bull... One would think brand conscious Japan would be all over this guy? What is going on?"

I think it's fair to say that we'd all like to see Kobayashi staying on next season, but money talks. Don't forget he came in to the sport with Toyota, but as both Toyota and Honda pulled out of the sport so did most of the money from Japan.

Webber goes quickest with the fastest time of the weekend so far - a 1:38.766

Alonso needs no time getting up to pace; his first flying lap is a 1:39.084 and the second best time of the day so far

Button on his first flying lap, as is Massa, and Massa has done the fastest first sector of the session so far

Button goes tenth with a 1:39.958, while Massa goes sixth on a 1:39.598

Hamilton pushing hard through the final sector and he goes second with a 1:38.845 - already nearly a second quicker than his best in FP2

Perez blocked Karthikeyan in the final sector to such an extent that there was an arm raised out of the HRT in anger

Alonso with a big lock-up in to turn one and he runs very wide

Button goes second with a 1:38.808 - losing about 0.06s in the final sector. It's not a lot but that's where the Red Bull has had the edge all weekend so far

Raikkonen misses his braking point in to turn three and runs wide

Hamilton now fastest on a 1:38.464

Raikkonen improves to sixth with a 1:39.373

Button and Massa both going quickly, but these times are all likely to be beaten when we see supersoft tyre runs soon

Button up to second place - 0.047s slower than his team-mate

The track is continuing to evolve so the fact that McLaren is quicker than Red Bull can be partly explained just by the fact that it's set its times later in the session

Paco in California emails in to ask: "What are the rules, if any, regarding contact between Hamilton or Perez and their future teams?"

Well they can talk all they wish, but they're limited with what they can talk about. By that I mean there are confidentiality agreements when drivers and team members move teams - as happens regularly in Formula One - or in the case of team members they are sometimes placed on gardening leave

Just to highlight my point about the improving track Vettel goes quickest with a 1:38.215

Some tape or debris has been shown hanging off the back of Vettel's car. Astoundingly, Vettel radios in to his team to inform them of what he describes as "a bit of cord". He may have seen it on a big screen around the circuit but either way that's amazing awareness and vision to be able to see that

Vettel's race engineer Rocky said that he could see it on TV and that it's just a bit of tape, before telling Vettel he was able to do another lap. Vettel immediately goes within 0.1s of his previous best

Half the field in the pits at present and we should see supersoft tyres any second now

Schumacher improves to sixth quickest - 0.935s off the pace

Supersoft tyres on Massa's car at the moment but it's still in the garage. Webber has a Renault engineer poking around the back of his car and he may be slightly delayed for his supersoft run

Supersoft tyres on Massa's car at the moment but it's still in the garage. Webber has a Renault engineer poking around the back of his car and he may be slightly delayed for his supersoft run

With 10 minutes left to go the track has fallen empty. The calm before a qualifying-style storm...

Patrick asks: "Is Michael on supersofts?"

Nope, we haven't seen any supersoft laps so far today as teams wait for the track to clean up.

A lot of interest in the back of Webber's car, and the Renault engineer looks pretty animated

Alonso heads out on supersofts with the track to himself

Kartik says: "It's so Amazing to see that Sebastian Vettel observes his car Details at such a High Speed. But did he watched it on big screens or do did he saw it in his Mirrors??"

With the size of the tape and the vibrations in the mirrors I'd be even more stunned if Vettel had noticed it in his mirrors. More likely the big screen.

Plenty of cars on track now as Alonso starts his flying lap behind Massa - although Massa then eases off behind Maldonado and allows his team-mate through

Alonso goes fourth but is half a second off the pace

Hamilton backed off when starting his flying lap as Raikkonen goes fourth with a 1:38.666

Button doesn't improve on the supersofts

Massa goes seventh - 0.576s behind Vettel

Vettel does improve - by about a quarter of a second - and is now top on a 1:37.970

Rosberg was 0.1s up in the first sector but ends the lap a second down

Webber won't get a timed lap in - he's not left the garage with 80 seconds left in the session, but he may get some sector times in if he can get out before the chequered flag

Hamilton improves his previous best and gets within 0.2s of Vettel. That was on his third attempt at a flying lap too, so there may have been some more life in those tyres

Webber doesn't make it out, but Vettel does improve once again on a second flying lap and goes over half a second clear of the rest of the field

Grosjean has gone fourth, less than 0.1s behind Button but 0.940s slower than Vettel

A pretty clear pecking order for qualifying has emerged in those last five minutes. Red Bull is quickest, McLaren is just ahead of Lotus and Ferrari is similarly close to both. Not a great session for Mercedes with its drivers 12th and 13th, but it felt its race pace was what needed the most work yesterday

Robyn emails in to ask: "What do you think about the race pace potential for Kimi?"

Raikkonen was ahead of both Red Bulls in Friday's simulations, so it looks as strong as it has previously this season, but Ferrari and McLaren had the edge over the Lotus as well as a better qualifying pace

So, timing your lap in qualifying will be crucial - the later the better - but can anyone stop Vettel? He looks back to his imperious qualifying best, and realistically you'd only say Hamilton can make life difficult for him. Will we see a close battle for pole? Join us again in 90 minutes to find out.