Nico Rosberg was happy with Mercedes’ new 2011 car on the first day of testing at Valencia.

The German and his famous teammate Michael Schumacher put the first miles on the W02 at the Spanish track but were not close to the top of the times.

Rosberg also had a technical problem and stoppage on the front straight, but declared himself happy anyway.

“I felt at home straight away,” he said, “and that’s important.”

Tuesday’s fastest runner was world champion Sebastian Vettel in the new Red Bull, nearly a second faster than the next best runner in a 2011 car, Ferrari’s Fernando Alonso.

Jun.13 (GMM)  F1′s governing body has issued a rule clarification after Lewis Hamilton was penalised and reprimanded for an incident at the end of qualifying in Montreal.

The McLaren pole sitter was fined $10,000 after driving too slowly on his Q3 in-lap and then stopping on the circuit, so that enough fuel was left in the tank for a sample to be tested by the FIA.

Not everyone was happy with the British team’s actions.

“I don’t know all the details so it’s hard to comment,” Mercedes team boss and FOTA technical chairman Ross Brawn is quoted as saying in Canada.

“But we must not come to a situation where cars run out of fuel after their last lap because they want to be running as light as possible.”

According to Germany’s Auto Motor und Sport, the situation was discussed on Sunday during a meeting of team bosses and the race director Charlie Whiting.

Whiting reportedly clarified that, in future, any car that runs out of fuel at the end of qualifying will be summoned to the stewards, risking penalties if the reason for the stoppage is not ‘force majeure’.

Jun.12 (GMM)  Stewards are looking into whether Lewis Hamilton should be penalised for an incident at the end of qualifying.

The 2008 world champion achieved pole position in Montreal, but on his ‘in lap’ was asked by a McLaren engineer to stop the MP4-25 at the side of the track.

The radio call, broadcasted live on television, informed 25-year-old Hamilton that the reason for the stoppage was to ensure there is enough fuel in the tank for the FIA to test a sample.

“The FIA don’t take kindly to you not having enough fuel to get into the pits at the end of the lap — they’ll be taking a look at that,” predicted BBC commentator Martin Brundle.

Allowing McLaren to get away with running Hamilton’s car too light in Canada, which is a performance advantage, would set a precedent whereby cars are regularly fuelled to stop on the circuit after a final flying lap.

McLaren did not mention the incident in its post-session press release.

Apr.30 (GMM)  Drivers’ and constructors’ championship leaders McLaren are also winning the race as F1′s most reliable team.

The British outfit, whose Jenson Button leads the drivers’ table by 10 points over Mercedes’ Nico Rosberg, completed every single lap with both MP4-25 cars at the initial Bahrain, Australian, Malaysian and Chinese grands prix.

In second place, a 100 per cent record for Ferrari was tarnished only by Fernando Alonso’s engine failure in the closing stages in Malaysia.

Red Bull is third with a 92.4 per cent finishing record in 2010, despite the RB6 appearing to have suffered from several reliability glitches so far.

In fact, Sebastian Vettel’s wheel nut problem in Melbourne was the team’s only DNF, while teammate Mark Webber has completed all four races within the top 9.

Similarly, only one Mercedes car – Michael Schumacher’s in China – has failed to reach the chequered flag, but the German team is fourth in the list with a 89.2 per cent record due the stoppage occurring early in the race.

Williams’ single DNF culminates in a 86 per cent reliability record because Nico Hulkenberg was taken out on the first lap in Australia.

Renault is sixth of the ten teams with 75.1 per cent, for while Robert Kubica has finished every race with the R30, rookie Vitaly Petrov’s first race finish was in China.

In Bahrain the Russian damaged the suspension by hitting a kerb too hard, in Melbourne he spun into the gravel, and in Malaysia he had to stop with a gearbox problem.

Impressively, the new team Lotus also has a 75 per cent finishing record, even though Jarno Trulli was not actually a classified finisher at Sepang because he was ten laps behind.

And in Melbourne, the Italian’s T127 was not even on the grid due to a pre-race hydraulics problem.

Toro Rosso’s Jaime Alguersuari has finished all the races, but teammate Sebastien Buemi was taken out on the first lap in both Australia and China — first by Kamui Kobayashi and then Vitantonio Liuzzi.

Force India is now increasingly mentioned as a serious F1 competitor, but its reliability record so far in 2010 is just 65.9 per cent.

Liuzzi crashed in China and had a throttle problem in Malaysia, while Adrian Sutil had a Ferrari engine problem in Melbourne.

HRT’s F1 career started badly with only one car crossing the line in the opening two races.

But the Dallara-built cars of Bruno Senna and Karun Chandhok both finished in Malaysia and China, giving the Spanish team a 65.2pc finishing record.

Virgin and Sauber are at the bottom of the pile, with Virgin achieving a mere 33.8pc reliability record with only Lucas di Grassi able to cross the line in Malaysia by aggressively saving fuel.

Sauber is last, with only Pedro de la Rosa recording a race finish in Melbourne for a reliability record of just 25.5 per cent.

“We’ve suffered too many reliability issues on both the chassis side and with our engines,” team founder Peter Sauber said on Thursday.

“That’s very unusual — we’ve always been one of the best teams in this respect over the years.

“We’ve closely analysed all the chassis-related problems and already put measures into effect.  Our engine partner Ferrari is doing the same,” he added.

Jamie McMurray held off Dale Earnhardt Jr. at the Daytona 500 on Sunday, a finish so thrilling it just about made up for a pothole that nearly derailed the Super Bowl of  NASCAR.

NASCAR needed two stoppages of well over two hours total to patch a pesky pothole between turns 1 and 2 of Daytona International Speedway. The setback brought the biggest race of the season to a frustrating halt and had NASCAR executives fretting over the potential fallout.

Hoping for a spectacular season-opener to re-energize the industry, the delays instead sent NASCAR chairman Brian France into the broadcast booth to calm an agitated audience.

In the end, though, the hole inadvertently improved the racing.

The action picked up tremendously after the second patch was applied, partly because drivers had to race as if the hole could rip open again and end the event on any lap. And did they ever.

They beat and banged their way through the field in a white-knuckle final 32 laps. Then a flurry of late-race accidents put NASCAR’s ”green-white-checker” policy — an overtime of sorts — to the test.

McMurray, using a boost from former teammate Greg Biffle, powered into the lead on the second and final green-white-checkered attempt. But Earnhardt, who restarted the final sprint in 10th place, was slicing his way through the field.

He weaved in and out of traffic, shoving his Chevrolet into three-wide lines, eventually darting his way to McMurray’s bumper. It was vintage Earnhardt — he’s a 12-time Daytona winner spanning NASCAR’s top two series — and McMurray was terrified to see him growing in his rearview mirror.

”When I saw the 88 behind me, I thought, ‘Oh no.’ He had a good car and I just thought — Earnhardt and Daytona, they win all the time it just seems like,” McMurray said. ”You never know what to expect.”

But with just two laps to make up so much ground, Earnhardt ran out of time and had to settle for second as McMurray sailed to his first career Daytona 500 victory.

”I didn’t know where I was, you know, ’til I really kind of got done almost wrecking down the back straightaway,” Earnhardt said of his charge. ”Then I looked up — there’s just one car in front of me, ‘Jamie’s gonna win this damn race!’

”I was happy for him. He deserves it. They’ve been through a lot. It’s a great team.”

McMurray climbed from his car and ran to the Daytona 500 logo in the infield, dropping to his knees and pounding on the painted grass. Overcome with emotion, he sobbed in Victory Lane as he celebrated with his Earnhardt Ganassi Racing team.

It was McMurray’s first race back with Chip Ganassi and Felix Sabates, who gave him his Sprint Cup Series shot in 2002. But McMurray left and spent four frustrating seasons with Roush Fenway Racing, only to lose that ride at the end of last season when NASCAR forced Roush to drop a team to meet its four-car limit.

McMurray had to fight to get a seat back with Ganassi, and it included convincing sponsor Bass Pro Shops’ owner Johnny Morris to take a chance on him.

The risk was well rewarded Sunday with the biggest win of McMurray’s career.

”It’s unreal,” McMurray sobbed. ”You know, to be where I was last year and for Johnny Morris and Chip and Felix. What a way to pay them back. It’s just very emotional.”

Biffle, a close friend of McMurray’s, was disappointed in finishing third because he was the leader when the caution came out after the first green-white-checkered attempt. But he was able to give McMurray the push that got his buddy into Victory Lane.

”I just made my move too soon, a mistake on my part probably,” Biffle said. ”This is a big, big win for anybody’s career. You got to be happy for anybody that ever wins this race. I was especially happy, the guys I was up there beating and banging with, you know, I would rather see Jamie win than those guys.”

Clint Bowyer finished fourth and was followed by David Reutimann and Martin Truex Jr. — teammates for Michael Waltrip, who finished 18th in what’s expected to be his final Daytona 500.

Kevin Harvick was seventh and was followed by Matt Kenseth, last year’s race winner, Carl Edwards and Juan Pablo Montoya, McMurray’s teammate.

After the race, DIS president Robin Braig apologized for the hole and the delays that caused many fans to head to the exits long before the finish.

”We’re the World Center of Racing. This is the Daytona 500. This is not supposed to happen, and I take full responsibility,” Braig said. ”We can come back from this. We know how to fix it. This is hallowed ground. We understand that. We accept the responsibility.”

By THE ASSOCIATED PRESS