Even after hosting its inaugural grand prix less than two weeks ago, a cloud is above the future of Korea’s formula one race.

The Yeongam circuit has failed a state safety inspection and cancelled a F3 race scheduled for November, amid new reports of apparent corruption within the organising company and F1 promoter KAVO.

The Korea Herald said the South Jeolla provincial government is set to investigate, with some money from the circuit’s construction budget spent without documentation.

“Over the next week, we’re going to look through all the documents of KAVO,” said Jung Hwan-dae, the vice-chairman of the provincial assembly.

“We’re also planning to summon officials from KAVO to investigate how the money was spent. There is something wrong here,” he added.

The undocumented expenditure amounts to more than $50 million, with other media reports alleging construction firms were paid off to avoid fees.

A KAVO spokesman would not say how the missing money was spent, but commented: “No illegal conduct took place.”

The inaugural running of last month’s Korean grand prix has been brought into question with a piece of emerging news on Thursday.

Although F1′s FIA inspectors cleared the bespoke venue in Yeongam for the October 24 event, it has emerged that state inspectors have deemed mobile stands unsafe for an international F3 race scheduled for late November.

Organiser Barry Bland said in a statement: “(Local promoter) KAVO have had to cancel the (event) due to Force Majeure.”

He said the reason was a “legal technicality with the circuit”, and a KAVO spokesman told AFP news agency that the cancellation is due to “delayed approval from inspectors”.

KAVO, or Korea Auto Valley Operation, is a joint private venture involving the Jeollanam-do regional government.

The spokesman Kim Jae-Ho said the decision will not affect next year’s Korean grand prix, unconditionally scheduled on the 2011 calendar for 16 October.

“We will do our best to build complete mobile stands,” he said.

“Compared to the lack of experience, we believe the first F1 race was staged in a satisfactory way, but we need to make perfect preparations for the F3 race next year,” the spokesman added.

South Korean companies are reportedly holding off before deciding whether to follow the east Asian country into formula one.

The brand new Yeongam circuit hosted its inaugural grand prix last weekend, but the only Korean brand involved as a sponsor was LG.

A range of companies told Korea’s JoongAng daily that they are waiting to gauge the impact of the first F1 race.

And South Korean mobile operator SKT, and the other major telcom KT, “largely expressed disinterest” in F1, the newspaper revealed.

“We have obviously decided not to sponsor the F1 races this year, but the situation might be different next year. It’s impossible to say at this point,” a spokesperson for KT said.

An SKT spokesperson added: “We had not heard of any plans regarding sponsorship (of F1) inside the company.”

And Diageo Korea, the Korean arm of McLaren’s whisky sponsor Johnnie Walker, said via a spokesperson: “We might consider sponsoring next year, depending on the success of this year’s Korean grand prix.”

Bernie Ecclestone and Jean Todt met in Korea last weekend and, according to a German report, “smoked the peace pipe”.

There had been speculation that F1 chief executive Ecclestone was supporting a possible power coup organised by Todt’s predecessor as FIA president, Max Mosley.

But Frenchman Todt and Ecclestone had a “long conversation” at the Yeongam circuit, Auto Motor und Sport reports.

“We want to work well together into the future,” Ecclestone, who turns 80 on Thursday, is quoted as saying afterwards.

Todt, meanwhile, said the rumours about the coup had been exaggerated.

“This season has shown that I am interfering as little as possible,” he said. “And If Mosley offers me his advice, this will also be welcome.”

Christian Horner on Wednesday said it is “ridiculous” to suggest Mark Webber tried deliberately to take out his rivals after crashing in Sunday’s Korean grand prix.

Former grand prix winner Gerhard Berger said on Tuesday that the Australian “could have hit the brakes” after crashing out of second place during the rain-hit race in Yeongam.

“Yes, I think that’s very clear,” said the Austrian. “It’s very obvious, you can see his wheels are not locked up.”

Webber actually collected the Mercedes of Nico Rosberg, but – according to Berger – he “would have preferred” to wipe title contenders Fernando Alonso or Lewis Hamilton out of the race.

Red Bull team boss Horner responded: “As with every incident in formula one, opinions will always be made without all the facts.

“Just to be absolutely clear — Mark’s intention was not to take out another driver after his crash and it’s ridiculous to suggest otherwise,” he told the Telegraph.

Horner admitted that Webber’s RB6 was “badly damaged” after his initial contact with the wall, but his attempt to keep the car going was a “natural and immediate instinct” to get back into the race.

“It’s absurd to suggest that Mark would ever deliberately take out another driver,” added Horner.

Gerhard Berger has accused Mark Webber of wanting to take out a championship rival after crashing in Sunday’s Korean grand prix.

Australian Webber, who at the time was leading the world championship by 14 points, spun on a wet kerb whilst running second at Yeongam and struck the wall.

But his Red Bull then rolled back across the circuit, collecting the Mercedes of Nico Rosberg.

“I don’t understand why Webber didn’t hit the brakes,” said Rosberg. “It was crazy to roll back across the track like that.”

Former grand prix winner Berger said on Monday: “He could have hit the brakes and stopped the car at the wall.

“He took out Rosberg, but it was the wrong one. I think in his mind he would have preferred Alonso or Hamilton,” the former Ferrari and McLaren driver told Austrian Servus TV.

Asked to clarify whether he thinks Webber’s move was deliberate, Berger – a former co-owner of the second Red Bull team Toro Rosso – added: “Yes, I think that’s very clear.

“He goes off and he knows it’s over. In this moment you’re frustrated and a thousand thoughts go through your head.

“It’s very obvious, you can see his wheels are not locked up. Perhaps he had a brake problem, but I don’t think so.”

The union of formula one drivers, the GPDA, revealed in Korea last weekend their push for more influence in the sport’s decision-making processes.

According to the German magazine Speed Week, the Grand Prix Drivers’ Association – now headed by president Rubens Barrichello – met at the Yeongam circuit with FIA president Jean Todt.

“We want a permanent dialogue with the governing body,” Brazilian Barrichello, accompanied to the meeting by fellow GPDA directors Sebastian Vettel and Felipe Massa, is quoted as saying.

According to another German language report in motorline.cc, Barrichello and his colleagues believe some of the problems in Korea – like troublesome kerbs and the dangerous pit entry – would not have been encountered if the drivers were more seriously canvassed.

“It was ok,” Barrichello said after the meeting with Todt.

“We discussed three or four things and he was very open. All we want is for the GPDA to be able to contribute more to the future of the sport,” he added.

Peter Sauber has denounced members of the Ferrari and McLaren teams for displaying “unsporting” behaviour during Sunday’s Korean grand prix.

Hinwil based Sauber’s founder and boss said he was upset to see team members of the rival teams celebrating jubilantly when Red Bull’s Mark Webber and Sebastian Vettel retired from the front of the inaugural Yeongam event.

In terms of the championship fight, it was indeed Ferrari and McLaren who benefitted most from Red Bull’s problems, but after he saw their celebrations on the pitwall monitors, Sauber said: “They were scenes that didn’t please me at all.

“Very unsporting,” the 67-year-old told Swiss daily Blick.

Meanwhile in Korea, Bernie Ecclestone helped veteran Blick correspondent Roger Benoit celebrate his 600th grand prix.

The Schumacher brothers are adamant Red Bull must now impose team orders if it wants to win the 2010 drivers’ world championship.

Their young countryman Sebastian Vettel looked set to take the points lead from his Australian teammate Mark Webber, who crashed on the slippery Yeongam circuit, after controlling Sunday’s Korean grand prix from pole position.

But Vettel also retired from the race with an engine failure, leaving him 14 points shy of Webber, who is now 11 points behind new championship leader Fernando Alonso.

With just two races to go, Ralf Schumacher thinks Red Bull’s new strategy should be obvious.

“Now Red Bull need to play a single card; Mark Webber,” the former grand prix winner, in Korea to commentate for German television, is quoted by Bild newspaper.

“Sebastian needs to get as many points as he can, but Red Bull must see to it that Webber gets the title,” Schumacher added.

Reluctantly, because it will be to the detriment of his friend Vettel, seven time world champion Michael Schumacher also said a team strategy must now be taken by Red Bull for the remaining Brazilian and Abu Dhabi grands prix.

“I’m sorry for Sebastian,” he told German television Sky. “I have to recall almost a decade ago, when everyone thought we at Ferrari were crazy to be thinking about the championship so early.

“But if Red Bull had done the same, their worry lines would be much smaller now,” added the German.

His reference to “almost a decade ago” must surely be about 2002, when Ferrari was roundly condemned for moving Rubens Barrichello aside so that Schumacher could take maximum points from the Austrian grand prix.

Ferrari implemented a similarly controversial strategy at Hockenheim earlier this year, and on Sunday Fernando Alonso moved to the head of the drivers’ title standings.

But Red Bull team boss Christian Horner was quoted on Sunday as saying he will not be making Webber the number 1 driver for the rest of 2010.

But he also told reporters at Yeongam: “I haven’t had time to look at all the mathematics and scenarios. It’s something that obviously we will look at pretty closely between now and Brazil.”

Vettel, however, made clear he is not personally ready to give up, even though his engine failure seriously dented his charge in Korea.

“It is very significant for the championship situation, but I am the last to give up,” German media quote him as saying.

The design of Mercedes’ 2011 car is already in the wind tunnel and “more innovative” that its disappointing predecessor.

That is the claim of the German marque’s Norbert Haug, one day after team boss Ross Brawn admitted the W01 was designed too conservatively amid Brawn GP’s 2009 title challenge.

“The prototype of the new car is in the wind tunnel,” Haug told Bild am Sonntag newspaper. “It will be more innovative, the result of taking more risks.

“The development of the current car is finished, so our engineers have more time to perhaps pursue some ideas that initially might seen outlandish.

“At the same time, our competitors are designing their new cars for 2011 whilst still fighting hard for this world championship,” added Haug.

In the same interview, the German also scotched reports he is at loggerheads with Brawn.

Working in the same office as his British colleague in the team’s offices at Yeongam, Haug insisted: “Does it look as though we cannot work with one another?”

However, much more pressing is the speculation that – at the end of another disappointing season next year – the team’s parent Daimler might pull the plug.

“Absolutely not,” Haug insists. “We certainly do not intend to be in the midfield, but no one at Mercedes is talking about quitting.”

After Sunday’s Korean grand prix, Christian Klien could return to the wheel of the HRT for one or both of the remaining races of 2010.

That is the claim of the Austrian newspaper Kleine Zeitung, recalling the 27-year-old’s strong performance with the struggling Spanish team in Singapore recently.

With his apparent food poisoning gone, Japanese pay-driver Sakon Yamamoto returned to the Cosworth-powered car in Japan and Korea.

But Kleine Zeitung said HRT is now considering putting reserve driver Klien back in the car for Brazil or Abu Dhabi, in a last-ditch effort to beat Lotus to tenth place in the constructors’ world championship.

Lotus has been the best of the three new teams in 2010, but neither it, HRT or Virgin has scored a single point.

Lotus is currently tenth due to Heikki Kovalainen’s 12th place finish at Suzuka, but an eleventh for HRT or Virgin at Interlagos or Yas Marina next month would see Lotus overhauled.

Only the top ten constructors share in the annual distribution of prize-money under the provisions of the Concorde Agreement.

Klien said in Yeongam that 2010 has shown that some pay-drivers are not necessarily the best value for F1 teams relying on the lucrative Bernie Ecclestone income.

“There is one at Virgin and Renault, and possibly two at Hispania,” he said.

But Klien acknowledged that a surprise result for HRT with the F110 car is unlikely.

“We are the only team that, since the season opener in Bahrain, has not aerodynamically improved its car,” he said.

He is therefore more hopeful about 2011.

“In March next year, I definitely see myself in a formula one cockpit,” said Klien.

As the Yeongam paddock emptied on Sunday night, the only talking point was the title contending teams’ driver strategies for the now two-race run to the championship crown.

Red Bull team boss Christian Horner said it is a “no brainer” that Jenson Button should now back his McLaren teammate Lewis Hamilton, whilst announcing that Sebastian Vettel still has a green light to push for the title.

“For us, the strategy is clear,” McLaren’s Martin Whitmarsh is quoted by Auto Motor und Sport. “We don’t really have to say anything to our drivers.

“Jenson will offer his help to Hamilton voluntarily, because he knows that we have treated him fairly throughout the year. And because he knows that he will win now only with a miracle,” added the Briton.

Red Bull’s Mark Webber and Vettel are separated by a smaller points margin, but Whitmarsh said “logic dictates that all the eggs are now put in the Webber basket”.

“But this team’s heart beats for Vettel,” he insisted. “There has been so much unrest that I am not expecting a clear statement from them.”

If Christian Horner was in charge at McLaren, Jenson Button would be relegated to a supporting role for the rest of the 2010 season.

After a catastrophic day in Korea for Red Bull, where both Sebastian Vettel and Mark Webber retired, the team’s boss said both drivers will still be given a clear run to the Abu Dhabi finale.

A smarter strategy might be to fully back Webber, who is 11 points shy of Fernando Alonso’s new championship lead, while Vettel is asked to play a supporting role due to his 25 point deficit.

“It would be wrong to do that. Our strategy will be to push both drivers,” a dejected Horner told BBC television in Korea.

Meanwhile, at McLaren, Jenson Button – now 42 points behind the lead – all but conceded the championship in the Yeongam darkness.

But when asked if he will now merely help his teammate Lewis Hamilton bridge his more realistic 21 point gap to Alonso, Button told reporters: “I won’t be asked.”

Horner thinks the Briton should help Hamilton, however.

“That’s a different situation,” said the Red Bull chief. “It’s a bit of a no brainer; I mean, there’s only 50 points available.

“But I don’t run McLaren, that’s their issue, not mine,” he added.

More rain is headed to the already wet Yeongam venue.

With only 40 minutes to go before the scheduled race start at 3pm, plenty of earlier rain has soaked the new Korean layout and grid.

For the Hyundai support race, there was a crash on the first lap and the rest of the race took place behind the safety car as marshals struggled to clear the cars.

Fears about a safety car start for the grand prix eased along with the easing rain a couple of hours ago, but the radar is now showing more showers on the horizon.

“It feels like it is going to rain again before the race starts,” said a media source at Yeongam at 2.15pm.

As the dark Korea paddock emptied on Saturday night, word spread that Lotus has finally secured its engine supply contract for 2011.

It has been an open secret that the new Malaysian team is switching from Cosworth to Renault, but the naming dispute with Proton was believed to have held up the formalities.

But, whatever the current status of the dispute with Group Lotus, it seems the contracts were at last signed in the new Yeongam paddock late on Saturday.

Finnish driver Heikki Kovalainen would not confirm.

“If it happens it will be an interesting deal for our team,” he told the Daily Mail.

After Renault, the next step will be the announcement of Kovalainen’s new deal for 2011, with his current teammate Jarno Trulli also tipped to return next season.

“At the moment I don’t want to talk about it anymore,” Kovalainen insisted.  “I think we have made good progress this year, so it is of course a very strong possibility for me to carry on here.

“That is all I can say at the moment,” he added.