High-profile sponsors are nervous, as formula one ploughs ahead with next week’s Bahrain grand prix.

Despite widespread trepidation felt within the paddock this weekend in Shanghai, the FIA has declared that there is no reason the Sakhir event cannot go ahead.

And after meeting with the teams on Friday, Bernie Ecclestone told reporters the race is “200 per cent” on.

But The Times reports that, amid the threat of violence, some sponsors have pulled the plug on providing hospitality for guests next weekend.

“When you have an environment like Bahrain then all the sponsors will be watching developments very, very closely and talking to each other,” a source said.

“It’s a case of ‘watch this space’ basically.”

However, the British newspaper said it is unlikely any major sponsors will pull their logos from the cars.

“(They) will effectively just have to follow the sport,” said Tim Bampton, of the motor sports marketing company Just Marketing.

“They will have to watch and wait to see what happens even though they could be caught in the vortex.”

But, at the same time, it is believed that sponsors’ contracts with the teams – such as Vodafone’s estimated $75m deal with McLaren – contain “brand damage” clauses.

An added complication for McLaren is that it is part owned by Bahrain’s sovereign wealth fund, with Mumtalakat Holdings “on course to own half the business” according to writer Kevin Eason.

Also under heavy scrutiny is the conspicuously silent FIA president Jean Todt, whose son Nicolas shares ownership of his GP2 team with Bahrain’s controversial crown prince.

“We all know why it (the Bahrain saga) might have dragged a bit,” Mark Webber is quoted by the Telegraph.

“F1 is like that. There’s a lot of funding and finances that have come from Abu Dhabi and Bahrain and the Middle East.

“They’re very excited about F1 and they clearly want to give it another go. Let’s see if it works,” added the Red Bull driver.

Martin Whitmarsh has played down fears McLaren has made a crucial mistake by overlooking the ‘step nose’ trend that will dominate the 2012 grid.
With the new Mercedes having now broken cover, and Pedro de la Rosa revealing that HRT’s 2012 car also has a step nose, famous British team McLaren is all alone in keeping a smooth aerodynamic line from the end of the monocoque to the tip of the nose.

Every other team has decided that the best solution to the new rules forcing a lower nose is to plough ahead with having as high a chassis as possible, in order to maximise the flow of air underneath the car.

“I’ve asked our technical guys if they are sure that we have done the right thing and they have told me not to worry,” team boss Whitmarsh is quoted by Germany’s Auto Motor und Sport.

He admitted there is an obvious aerodynamic benefit to the ‘step nose’ solution.

“But we have a lower centre of gravity, more freedom in the suspension geometry, and a more comfortable seating position and a better view for the driver,” added Whitmarsh.

The main reason for McLaren’s decision is that, having already gone a different route to Red Bull at the front of the car last year, a ‘step’ nose would have required a wholesale design philosophy change.

“This car is an evolution,” confirmed Whitmarsh.

“In terms of radical innovations that are visibly obvious, I’ll have to disappoint — these rules just don’t leave that sort of room any more.”

Norbert Haug has admitted that Mercedes might line up on the 2011 grid with some new employees.

“In 2011 we will make a step forward.  So we need to have the best possible staff, which may include some new people,” he is quoted by the Cologne newspaper Express.

But amid rumours it might be Ross Brawn or Michael Schumacher who depart, the Mercedes competition director insisted the famous duo are actually going nowhere.

“In 2011 the drivers are Michael and Nico Rosberg,” Haug announced.

“And we believe in Ross and his team,” added the German, amid rumours of tension between Brackley in the UK and Mercedes GP’s German side.

“We just know what victory feels like, so perhaps we are sometimes a bit grumpy,” said Haug, explaining the apparent tension in the paddock at present.

One answer might be to plough more money into the team, or make a big offer for a high profile signing like Adrian Newey.

“Of course we could put another 10 million euros into F1, but we don’t want to,” said Haug.