Sergio Perez admitted to mixed feelings on Wednesday as he returned to Monaco.

The last time he was in the Principality to race – for his debut grand prix in the fabled Principality – he was hauled away in an ambulance, having been knocked unconscious in a huge qualifying crash.

“To me it’s unbelievable to be back here after such an accident,” the 22-year-old said on Wednesday, according to Germany’s Auto Motor und Sport.

Mexican Perez said Monaco is still his favourite track.

“It is definitely not a good feeling that the walls are so close, but we know the risks. It’s a special place.

“I can remember everything right up to the crash. The next thing I know was that I was on the way to hospital — I was unconscious for several minutes.

“After such an accident it is not easy to come back — I cannot say for sure how I will feel when I come out of the tunnel for the first time. But I think it will be completely out of my head.”

Perez said he really needed “four or five” races to recover from the heavy concussion, but that there was pressure from sponsors to come back as soon as possible.

“I wanted to get back into the car in Montreal, but it was impossible,” he recalled.

“In Valencia it was very difficult for me.”

Now, he is hoping for a very different Monaco weekend, after looking strong last year until his crash.

“Our goal must be the podium. I hope to find a good setup although we have recently had a little problem with the traction.

“We are so close to the top that every tenth can make a difference.

“After our second place in Malaysia, maybe the next step will be victory — I don’t know if we will succeed. But the opportunities are there,” said Perez.

Ross Brawn revealed on Wednesday he missed the recent Spanish grand prix to have checks on his heart.

After handing over to his Mercedes deputy Nick Fry in Barcelona, fellow Briton Brawn is back in action as the team boss in Monte Carlo.

Rumours hinted there was more to the story, but Brawn insisted to a German newspaper earlier on Wednesday that he was simply advised by doctors to take the weekend off after a night in hospital for checks.

He then told reporters in Monaco his symptoms had been “arrhythmia”, or an irregular heartbeat, insisting he is “back to normal now”.

Brawn, 57, joked the heart problem was triggered by watching an exciting football game on television.

Marussia needs a KERS system to catch up with its direct rivals.

That is the admission of team boss John Booth, who told the Russian website championat.com that he is looking into adding the energy recovery technology to next year’s Marussia package.

“First of all, I want to say that while it is said it (KERS) is a ‘green’ technology, in reality it’s just a serious waste of money,” he said.

“But in our situation it’s time to start thinking seriously about KERS. Of the gap to Caterham, five or six tenths is due to KERS,” added Booth.

“So we are thinking seriously about it for 2013, but so far there is no decision.”

Both admitted the start of the 2012 season has been a disappointment so far for Marussia, which in its first two years was called Virgin.

He said the team has recently completed a phase of serious restructuring.

“We had a good team of people before, but now we have a good team of designers. Though we have been in F1 for three years, I have the feeling that we were actually born in July 2011.”

Both is undoubtedly referring to the split mid last year with former technical chief Nick Wirth, and the relocation to a new headquarters.

It is believed static electricity could have sparked Williams’ garage fire two weeks ago in Barcelona.

Even in the Monte Carlo paddock, the huge Spanish blaze was still a hot topic.

The British team and the FIA conducted investigations, but there has been no definite finding about the cause of the fire.

Germany’s Auto Motor und Sport reported suggestions simple static electricity, caused by the specific weather conditions and the fact a container was not grounded at the time, was the culprit.

Williams has scrambled to be ready for Monaco, but the only obvious sign of the fire on Wednesday was one missing mechanic, who is still recovering from burns.

“He’s on the road to recovery,” said co-owner Toto Wolff.

It is believed the mechanic was pumping fuel from one container to another when the fire started.

Wolff confirmed the static electricity theory.

“This is extremely rare. The weather may have played a role, as we had low pressure over Barcelona that day,” he explained.

Auto Motor und Sport said Williams lost mainly computers in the fire, but the crucial data survived. Of the team’s 150 radios, only 40 were intact.

Wolff said Bruno Senna’s chassis survived because of the partitions at the back of the main pit area.

“They are flame retardant,” he confirmed. “This meant the fire did not come beyond the back (area). The walls melted in the heat, but they didn’t burn.”

And financially, the Oxfordshire based team is completely undamaged, due to insurance.

Heikki Kovalainen is looking for Caterham to move into the midfield, according to his new management company.

Having handled his own career in the wake of Flavio Briatore’s demise, Finn Kovalainen recently signed up with IMG, the sports and entertainment management giant.

The 30-year-old has rebuilt his reputation since 2010 in the wake of mixed tenures for top teams Renault and McLaren.

According to IMG Motorsport’s head of clients Martin Anayi, Kovalainen is now regarded by formula one team bosses up and down pitlane as among the top best drivers.

“He is a great guy,” Anayi is quoted by Finland’s Turun Sanomat newspaper.

“Heikki’s potential is obvious and he definitely wants to succeed.”

There have been rumblings in the paddock that Kovalainen is disappointed that, despite being consistently the best of F1′s new teams since 2010, Caterham is yet to break into the midfield.

“This is only the team’s third season, so there are still some growing paints,” IMG’s Anayi acknowledged.

“Heikki has a strong desire to compete, and not just with his teammate Vitaly Petrov. The team’s boss Tony Fernandes wants to get in with the middle group.

“This means that the team needs to regularly get into the Q2 stage of qualifying and in the race be aiming for the points,” he insisted.

There is trouble afoot at Monza, the scene of the famous and historic Italian grand prix.

On Tuesday morning, Italy’s finance police the Guardia di Finanza entered the Autodromo Nazionale to investigate seven people involved with the operation of the circuit.

According to Il Giorno and La Repubblica, the Monza prosecutor suspects tax offenses, false invoicing and other discrepancies in relation to Sias SpA, the circuit operator, between 2007 and 2012.

Among the suspected offenses is the issuing of invoices for non-existent transactions in order to show a positive balance sheet for the running of some events.

The officers raided the Sias offices and also the home of the circuit director, Enrico Ferrari, and other high ranking officials.

A favourite for victory this weekend, Pastor Maldonado is reportedly lucky to be gearing up to race in the Principality at all.

Bild newspaper recalls that the Venezuelan, who defied his ‘pay driver’ critics by winning for Williams in Spain two weeks ago, was actually banned after an horror incident on the streets of Monte Carlo seven years ago.

Racing in the Renault World Series in 2005, the then 25-year-old ignored yellow flags before striking and severely injuring a marshal.

Organisers of the Monaco grand prix reacted by banning Maldonado from the street circuit for life.

Germany’s Bild revealed that Maldonado’s wealthy father intervened, promising to pay for the marshal’s recovery and rehabilitation from a broken back.

That intervention saved Maldonado’s future formula one career, as no team would hire a regular driver that cannot participate in the sport’s most famous race.

Maldonado is therefore a favourite for victory this weekend, with his Williams now acknowledged as arguably the best in the entire field when it comes to slow-speed traction.

And in his four seasons of GP2 between 2007 and 2010, Maldonado finished on the podium each time, winning and achieving pole position twice. In 2006, he won in Formula Renault.

Last year, in qualifying for his first Monaco grand prix, he qualified his then struggling Williams in eighth place, comfortably ahead of Rubens Barrichello.

“He is very good at Monaco,” agreed Barrichello.

In the 2011 race, Maldonado was fighting for fifth when he crashed with Lewis Hamilton.

“If the last sector in Barcelona is the marker, then the Williams will be unbeatable in Monte Carlo,” Germany’s Auto Motor und Sport quotes Dr Helmut Marko as saying.

The breakthrough success in Barcelona has piqued the interest of Maldonado’s native Venezuela, having not had an F1 points scorer since the ignominious Johnny Cecotto in 1983.

“My country will be following every second of the next race,” Maldonado is quoted by O Estado de S.Paulo newspaper.

“I love street circuits, this one in particular. My style of driving fits perfectly with Monaco. I am ready to get another great result.”

Vitaly Petrov thinks it is possible Felipe Massa will lose his Ferrari seat long before the 2012 season is over.

But Caterham’s Russian driver, who moved from Renault (now Lotus) at the end of last season, does not believe reports that Ferrari could sack the struggling Brazilian imminently, such as after next weekend’s Monaco grand prix.

“I don’t think they’ll fire Massa just now. At least not until August,” Petrov is quoted by the state owned Moscow news agency Ria Novosti.

There are six races until August’s month-long calendar ‘summer’ break.

So while Petrov thinks Massa’s career is genuinely in danger, he does not agree that Ferrari is ramping up the pressure on the 30-year-old.

“I wouldn’t say that Ferrari are criticising him that strongly,” he said. “They’re not saying he has one more chance or anything like that.”

F1′s next winner could be at the wheel of a black and gold car.

“I think Kimi (Raikkonen) will be the sixth different winner in the sixth race,” said Finnish commentator and former driver Mika Salo, to the MTV3 broadcaster.

Although the results in 2012 have proved impossible to predict so far, many paddock pundits expected Lotus’ E20 to be the car to beat last weekend in Barcelona.

“The big surprise was when Kimi didn’t win,” admitted former Ferrari driver Salo, referring to Pastor Maldonado’s victory for Williams.

Also confident about Lotus’ potential is Raikkonen’s teammate, Romain Grosjean, who finished behind the 2007 world champion last weekend.

“It’s good to be a little disappointed with third and fourth,” he told the French language RMC Sport. “It shows that as a team we are convinced we can win.”

According to the reigning world champion team Red Bull’s drivers, however, there is a downside to this year’s impossible-to-predict F1 landscape.

“Maybe we will see an HRT or a Marussia on pole in Monaco,” world champion Sebastian Vettel said, unenthusiastically and half-seriously.

Mark Webber insists that what has been described as the Pirelli ‘lottery’ might not be a good thing for the sport.

“I don’t know if they (the fans) will get sick of seeing so many different winners,” the Australian told Fox Sports.

“It’s nice to have different winners but also we want rivals.”

It is possible formula one teams will be limited to a budget cap in 2013, according to Germany’s Auto Motor und Sport.

The budget cap idea saw the sport almost implode amid the bitter political war of 2009, when proposed by controversial former FIA president Max Mosley.

But it is back on the agenda in 2012, and according to new rules – where a majority of teams can now push through a change – it could be imposed next season.

“Ten of the 12 teams are in favour,” Auto Motor und Sport said, referring to the push to have cost-cutting moved from the FOTA gentleman’s agreement to the actual sporting regulations.

It means that the two dissenting teams, the Red Bull-owned Red Bull Racing and Toro Rosso, will have no say.

“The cost to be competitive in formula one at present is too high,” the boss of the energy drink company’s premier team, Christian Horner, said recently. “I don’t think anybody will dispute that.

“The debate is how we achieve it.”

Not only that, the German report said nine teams are in favour of Mosley’s old budget cap idea, with annual expenditure limited initially to EUR 170 million and then diminishing to 100 million over a few seasons.

Charlie Whiting has defended the decision in Spain to move Lewis Hamilton from pole to the very rear of the grid.

Although McLaren was widely criticised for making a grave error, the stewards’ penalty was at the same time described by the world’s press as “draconian”.

“Quite frankly I did not expect the penalty that we received,” said McLaren team boss Martin Whitmarsh.

Indeed, given that McLaren’s fuel indiscretion occurred only in the decisive Q3, why not simply delete Hamilton’s Q3 laptimes, thereby putting the Briton mid-grid for the race?

“We had no room to move,” Whiting, the FIA’s race director, responded to Germany’s Auto Motor und Sport when told that Hamilton’s penalty seemed too severe.

“If there is a violation, it applies to the whole session, not just part of it,” he insisted. “Qualifying begins with Q1.”

Whiting explained that if Hamilton had only lost his Q3 time, a precedent would have been set tempting teams to risk not being checked for the mandatory 1 litre fuel sample in post-qualifying scrutineering.

Auto Motor und Sport said only one or two fuel samples are actually checked after qualifying at grands prix.

Competitors could, therefore, genuinely “run the risk” of using less fuel than is allowed in Q3, if the penalty for being caught is relatively light, Whiting argued.

He recalled last year’s German grand prix, when Sebastien Buemi was sent to the back of the grid because his fuel sample showed irregularities.

As it was not possible to check if the illegal fuel had also been used in Q1 and Q2, the Toro Rosso driver had to be disqualified from qualifying, Whiting argued.

The oddest element of the 2012 season so far is that the unlikeliest of candidates could now be genuine title contenders.

Before the Spanish grand prix weekend, Pastor Maldonado was a commonly derided ‘pay driver’ with 500-1 odds of winning in Barcelona, and just a single point to his name in 2011.

Now, he is F1′s newest pole-getter and race victor, and genuinely regarded as a potential contender for the world championship.

And Dr Helmut Marko, the reigning world champion Red Bull’s motor racing manager, said: “If the Williams really has traction that good, then Maldonado will run rings around everyone in Monte Carlo,” he is quoted by Auto Motor und Sport.

Maldonado travelled straight from Spain to Caracus, where he was being quizzed by the local media as to his chances of a back-to-back victory repeat in Monaco next weekend.

“I think it’s going to be a great opportunity for us to be strong again,” he said.

Jaime Alguersuari has told Spanish publications he is “absolute certain” he will be on the 2013 grid.

“This is the best year of my life,” he told Mundo Deportivo, referring to 2012, the year after his young F1 career stalled when he was dropped by backer Red Bull.

“I’m only 22,” said Spaniard Alguersuari, who is now Pirelli’s main test driver and a co-commentator for British radio. “I’m in the prime of my life.

“It is increasingly clear that what happened with Toro Rosso was not a sporting decision. It was an internal decision and I don’t want to go deeper.”

He sounded confident about the future.

“It is 100 per cent that I will return in 2013. After being with Pirelli I will have very important knowledge. I knew that this transitionary step was necessary and I’m very happy,” said Alguersuari.

“If I had gone (to be test driver) with a team, with all due respect, I’d have no options now.

“I am developing a product (Pirelli) that nobody understands but that is vital for formula one — to know the tyres and to understand them. I’m in the right place,” he is quoted by La Vanguardia newspaper.

“I chose to be with Pirelli because I knew it would be the most important (element) in formula one.

“I know where I am and I know where I’ll be next year,” he insisted.

Preparations for the inaugural Russian grand prix in 2014 appear to have hit a roadblock.

We reported last weekend that rumours were circulating in the Barcelona paddock that the Sochi race now appears “doomed”.

The state owned Moscow news agency Ria Novosti now reports that political issues have created “serious delays” in the race’s preparations, according to an adviser with the Russian Automobile Federation.

The official, Igor Yermilin, insisted that the project is not doomed, but he said very few efforts have taken place following the bureaucratic reshuffling of the local Krasnodar region.

He said some officials of the Omega company, responsible for the F1 circuit project, have lost their jobs.

“In the Krasnodar region there has been have been quite serious changes in the leadership,” Yermilin said, “including people from Omega who signed the contract on holding the Russian grand prix”.

The coastal city Sochi is also scheduled to host the 2014 Winter Olympics.

“The main thing at the moment is the Olympics — the grand prix is on the back burner,” said Yermilin.

Even amid the chaos of the 2012 pecking order, the star performer is obvious.

That is the view of former F1 driver Christian Klien, who confirmed to the Austrian news agency APA that one of his current roles is a simulator driver for the sport’s latest winning team, Williams.

“It (2012) is very open,” he said, “but for me Fernando Alonso stands out.”

Equal with Sebastian Vettel, Spaniard Alonso is at the top of the drivers’ world championship, a full eight points clear of Lewis Hamilton.

The Spaniard’s car has been the struggling Ferrari F2012, but he has never finished a race this season lower than ninth (China).

He has therefore scored points at every opportunity, even finishing first and second in Malaysia and Spain respectively.

“Alonso has an inferior car,” Klien explained, “but he uses every single little opportunity.

“He is the most complete driver who gets the most out of the package he has.”

Triple world champion Sir Jackie Stewart agrees that, among arguably the most competitive grid of drivers since the late 80s, Alonso is the standout performer.

“Right now we have the best generation of drivers we’ve had for a while,” the famous Scot told the Spanish sports daily AS.

“Everyone talks about Vettel, who is a great driver, and also Hamilton of course, but there is also Button, Schumacher, Kimi — all champions.

“There are others like Webber who also have the quality to win, young drivers coming up, many of them are very good, but also it is true that Alonso is fantastic.”

Asked why the Spaniard has not added a title to his tally since 2006, Stewart said: “The explanation is easy — he hasn’t had the luck to get the best car.

“Now he has one that isn’t good, but it’s in those circumstances that you see even more the quality that he has,” said Stewart.

Given Alonso’s push to the top of the championship with a sub-standard car, therefore, all the talk about Ferrari writing off the 2012 championship has been silenced for now.

“We have to keep developing the car,” Stefano Domenicali, Ferrari’s team boss, said after Barcelona, where significant upgrades were brought to the F2012 package.

“We are not yet fast enough to consistently fight for the podium, but that is the only option if we want to be in contention for the title,” he insisted.