For the 2009 season, the FIA are making public the weights of all cars ahead of the race start to help give an idea of relative fuel loads. The cars that made Q3 are weighed after qualifying, while the weights of the remaining cars must be declared by their teams shortly after the session.

Below is the provisional grid for the British Grand Prix with each car's weight.

1. Sebastian Vettel, Red Bull, 666.5 kg
2. Rubens Barrichello, Brawn GP, 657.5
3. Mark Webber, Red Bull, 659.5
4. Jarno Trulli, Toyota, 658
5. Kazuki Nakajima, Williams, 652.5
6. Jenson Button, Brawn GP, 657.5
7. Nico Rosberg, Williams, 661.5
8. Timo Glock, Toyota, 660
9. Kimi Raikkonen, Ferrari, 654
10. Fernando Alonso, Renault, 654
11. Felipe Massa, Ferrari, 675
12. Robert Kubica, BMW Sauber, 689.5
13. Heikki Kovalainen, McLaren, 695.5
14. Nelson Piquet, Renault, 682.5
15. Nick Heidfeld, BMW Sauber, 665.5
16. Giancarlo Fisichella, Force India, 668
17. Sebastien Bourdais, Toro Rosso, 687.5
18. Adrian Sutil, Force India, 692
19. Lewis Hamilton, McLaren, 666
20. Sebastien Buemi, Toro Rosso, 672.5

Kimi is set to stop on Lap 16. Pretty much the lightiest guy in the top 10. Felipe obviously is heavy fueled as he missed out in Q2

Felipe Massa was consigned to 11th place after grappling with understeer in the slow final sector

British GP starting grid

1.  VETTEL        Red Bull     

2.  BARRICHELLO   Brawn        

3.  WEBBER        Red Bull      

4.  TRULLI        Toyota        

5.  NAKAJIMA      Williams      

6.  BUTTON        Brawn        

7.  ROSBERG       Williams      

8.  GLOCK         Toyota        

9.  RAIKKONEN     Ferrari       

10. ALONSO        Renault      
11. MASSA         Ferrari       

12. KUBICA        BMW          

13. KOVALAINEN    McLaren       

14. PIQUET        Renault      
15. HEIDFELD      BMW          
16. FISICHELLA    Force India   

17. BOURDAIS      Toro Rosso    

18. SUTIL         Force India   

Felipe Massa, P1 - 1:20.471, 6th; P2 - 1:21.005, 17th
“I am not very happy with the way these two free practice sessions went. The track was rather dirty and the wind also had an effect. We didn’t manage to find the right way to go to improve the balance of the car. There is definitely a lot of work awaiting us in preparation for qualifying, where the most realistic target at the moment is to get into the top ten.”

Kimi Raikkonen, P1 - 1:21.179, 14th; P2 - 1:21.132, 18th
“Difficult to say where we are in respect to the others: we will have to wait for tomorrow’s qualifying to find out. Clearly, looking at today’s results, we are definitely not in for an easy weekend. The car’s not bad in terms of balance, but doesn’t seem to be quick enough. The tyres are the same as in Turkey, but of course it is much cooler here: on the first lap, the performance between the two types is quite different, but then over a longer run, they tend to be similar. As predicted, there’s a wind blowing on the track, but it’s not as damaging as I’d expected.”

Chris Dyer, Ferrari chief engineer:
“We had a few little problems on both cars: nothing particularly serious but enough to slow us down in completing the programme we had planned for the two drivers. We have various new components on the F60 and now we will have to analyse the car’s behaviour to try and tackle a weekend that certainly looks like being a tough one, in the best way possible.”

Max Mosley has rejected claims by eight of the 10 Formula 1 teams that they will set up a breakaway series next year as "posing and posturing".

President of governing body the FIA, Mosley said he will start legal action against teams umbrella group Fota.

But he added in an exclusive BBC Sport interview: "We all know that there will be an F1 world championship and everyone who can be in it, will be."

Red Bull boss Christian Horner said the two sides had reached a "stalemate".

Ferrari, McLaren, Red Bull, Toro Rosso, Toyota, Renault, Brawn and BMW Sauber issued their threat late on Thursday evening.

An FIA statement on Friday afternoon said Fota's actions amounted to "serious violations of law including wilful interference with contractual relations, direct breaches of Ferrari's legal obligations and a grave violation of competition law".

The statement added that the 2010 F1 entry list, which the FIA had planned to publish on Friday, would be "put on hold while the FIA asserts its legal rights".

That decision gives all parties room for manoeuvre as they search for a compromise on the issue.

"Always with these things in the end there's a compromise," Mosley said. "They can't afford not to run in F1 and we would be very reluctant to have an F1 world championship without them."

Mosley repeated his belief that some of the teams backed by road-car manufacturers might quit F1 over the winter - he has already named BMW, Renault and Toyota as the most vulnerable.

But he added: "The great traditional teams, and I include Ferrari in that, need to be there and they will be there.

"They can't get the backing they need to run in another series, so eventually they will come back. We have to leave the door a little bit open.

"At the moment we can't negotiate with them successfully because everything we offer is rejected, because their fundamental position is they want to take the financial side away from the commercial rights holder, Bernie Ecclestone, and they want to take the governance of the sport, the regulation, from us.

"That can't happen and it's not going to happen, and eventually they'll recognise that and everything will come together."

The row was provoked by Mosley's decision in April to introduce a £40m budget cap next year, but it also revolves around governance of the sport.

Mosley says the teams agreed to a cap last year - a claim Fota rejects - and insists that it is vital to the future health of the sport, which he says it not sustainable at current spending levels.

But the Fota teams reject his claim that they want to engage in a "spending arms race".

They say they, too, are committed to cost cuts, but they prefer to limit ways in which the teams can spend money.

The Fota teams also object to what they see as the autocratic way in which Mosley runs F1, and the way he has allowed the Concorde Agreement - which enshrined certain rights for the teams, including in rule-making - to lapse.

Ecclestone denies knowledge of Fota statement

They also want what they consider to be a fairer split of the sport's profits and changes to the way the commercial side of F1 is run.

Mosley had invited the Fota teams to enter next year's championship and sort out their disagreements afterwards, but Horner said: "Entering with goodwill but no clarity, no guarantees, without those concrete compromises, [and] solutions in place, is an untenable position for the teams."

Mosley said he would consider resigning if that would solve the problem, but added: "That's not the issue."

"Whoever replaced me would defend the interests of the FIA because the championship belongs to them. The next person, they'd want his head until they got what they wanted. They're challenging the governing body of motorsport and that will not succeed.

"The difficulty they're putting me in is even if I wanted me to stop they're making it very difficulty for me to do so, because the people in the FIA are saying we've got all this trouble, we're being attacked, you must stay."

Ross Brawn, the boss of championship-leading Brawn GP, denied that the teams were working to remove Mosley.

"It's in no way a condition of the conditional entry the Fota teams have made," he said. "It's not something the Fota teams are pushing for or asking for. it has not entered discussions."

Mosley said he had made "concession after concession to accommodate them and they keep saying no."

He said he had reached an agreement with some teams, but "the others - what we call the loonies - tore it up.

"They simply won't talk about any progress and they pretend it's us.

"They say the FIA - or I - am dictating. That is not it at all. We are trying to get the thing in order."

Horner added: "A huge amount of effort has been made by the teams to try and find a compromise because we do have a duty of care to the employees, the fans, the sponsors, the public.

"The intention and effort was to try to find a compromise, a solution. The decisions that were made were not taken lightly. It's a difficult decision to make, but the conditions we put in have effectively been rejected and the teams reached a position where they feel they could go no further. Situations can change, but that's where we are."

Brawn added: "The teams' ambition is not to take over F1, but they have a massive investment in it. They want their investment protected." 

Renault's two-time world champion Fernando Alonso believes Formula 1 is "finished" following the announcement of plans for a breakaway series.

On Thursday, eight of F1's major teams, including Renault, said they intended to establish a rival championship.

And Alonso told the BBC that what was left of the old F1 would be inferior.

"Formula 1 is finished. It will be a standard engine, small teams and no drivers - this is not the Formula 1 people want," the Spaniard said.

"The new series will be the new Formula 1."

The breakaway move is the latest chapter in the bitter row over budget cap proposals.

World motorsport boss Max Mosley wants to introduce a voluntary £40m budget cap to curtail a "financial arms race" among F1's teams.

But eight of them, under the umbrella of the F1 Teams Association (Fota), have strongly resisted Mosley's attempts to force this and other rule changes through.

Mosley's latest letter proposes a £86m budget cap for 2010, falling to £39m in 2011.

Ferrari, Toro Rosso and Red Bull have refused to race under the optional £40m cap originally proposed, with only Williams and Force India definitely on the starting grid next season.

Speaking before the teams issued their breakaway threat, Alonso said: "I hope they find a solution, but these are difficult times. It is a critical position for Formula 1.

"If we do not race in Formula 1 next year it changes many things. It won't be the same. We know we'll race, but it will be different."

Asked if he would drive in a different series next year if the worst case scenario does unfold and there is a split, Alonso replied: "Of course. I won't retire, I will drive for another championship.

"We want to compete with the best teams in the world, the maximum technology, we all want to compete with the best drivers.

"If there is no new series, I will not join the new Formula 1 as I have said, with the small teams.

"It is not F1, not the category we have loved for the last 60 years.

"There are other categories, and hopefully I'll find an attractive one outside of F1, or outside Europe. I will keep racing because I am only 27 years old.

"Maybe the US. There is some good competition there, like the Indy cars, and then there is Le Mans. I am not going to close any doors." 

The major flaws of the Ferrari F60 seemed all to apparent in Friday Practice as Ferrari struggled in session 1 and had a dismal time in session 2. Ofcourse, This is race setup and tyre selection but we hope Practice 3 and Quali will atleasr see both Ferrari's qualify in the top 10 hopefully.

Felipe Massa was left downcast by Ferrari's performance in Silverstone practice and reckons even reaching Q3 could be a huge mission for the team tomorrow.

The Brazilian was only 17th in second practice, one place ahead of his team-mate Kimi Raikkonen, and admitted that Ferrari was simply too slow.

"I am not very happy with the way these two free practice sessions went," he said.

"We didn't manage to find the right way to go to improve the balance of the car.

"There is definitely a lot of work awaiting us in preparation for qualifying, where the most realistic target at the moment is to get into the top ten."

Raikkonen agreed that Ferrari was in trouble, although he added that practice times had often turned up to be misleading in the past.

"Difficult to say where we are in respect to the others," he said.

"We will have to wait for tomorrow's qualifying to find out.

"Clearly, looking at today's results, we are definitely not in for an easy weekend.

"The car's not bad in terms of balance, but doesn't seem to be quick enough."

The team's head of trackside operations Chris Dyer said all Ferrari could do was dig deep into the data and try to find a solution by tomorrow.

British Grand Prix free practice session two
1.  VETTEL        Red Bull      1m19.456s

2.  WEBBER        Red Bull      1m19.597s

3.  SUTIL         Force India   1m20.141s

4.  NAKAJIMA      Williams      1m20.209s

5.  ALONSO        Renault       1m20.237s

6.  BARRICHELLO   Brawn         1m20.244s

7.  HAMILTON      McLaren       1m20.417s

8.  TRULLI        Toyota        1m20.458s

9.  ROSBERG       Williams      1m20.468s

10. PIQUET        Renault       1m20.608s

11. KUBICA        BMW           1m20.622s

12. KOVALAINEN    McLaren       1m20.733s

13. GLOCK         Toyota        1m20.762s

14. BUTTON        Brawn         1m20.767s

15. HEIDFELD      BMW           1m20.932s

16. BOURDAIS      Toro Rosso    1m20.945s

17. MASSA         Ferrari       1m21.005s

18. RAIKKONEN     Ferrari       1m21.132s

19. FISICHELLA    Force India   1m21.413s

20. BUEMI         Toro Rosso    1m21.668s

2.  WEBBER        Red Bull      1m19.682s

3.  BUTTON        Brawn         1m20.227s

4.  BARRICHELLO   Brawn         1m20.242s

5.  ALONSO        Renault       1m20.458s

6.  MASSA         Ferrari       1m20.471s

7.  TRULLI        Toyota        1m20.585s

8.  HAMILTON      McLaren       1m20.650s

9.  ROSBERG       Williams      1m20.815s

10. FISICHELLA    Force India   1m20.838s

11. SUTIL         Force India   1m20.913s

12. KOVALAINEN    McLaren       1m21.029s

13. HEIDFELD      BMW           1m21.103s

14. RAIKKONEN     Ferrari       1m21.179s

15. BOURDAIS      Toro Rosso    1m21.384s

16. GLOCK         Toyota        1m21.386s

17. NAKAJIMA      Williams      1m21.489s

18. PIQUET        Renault       1m21.525s

19. BUEMI         Toro Rosso    1m21.590s

Formula One has been thrown into chaos after the Formula One Teams Association (Fota) carried out its threat to set up a rival championship in 2010.

Eight of F1's major teams have been frustrated by deadlocked talks with world motorsport boss Max Mosley over his controversial budget cap proposals.

"The teams have declined to alter their original conditional entries to the 2010 F1 Championship," said the teams.

"We've no alternative than to commence preparation for a new championship."

Mosley was insistent on introducing a voluntary £40m budget cap for teams to curtail a "financial arms race" in F1.

But Fota refused to agree to his conditions, prompting championship leader Brawn GP, Ferrari, McLaren, Renault, Toyota, BMW Sauber, Red Bull Racing and Toro Rosso to take their drastic action.

They announced their decision following a four-hour meeting on Thursday night ahead of this weekend's British Grand Prix at Silverstone.

"Since the formation of Fota last September the teams have worked together and sought to engage the FIA and commercial rights holder (Bernie Ecclestone), to develop and improve the sport," read a Fota statement.

"Unprecedented worldwide financial turmoil has inevitably placed great challenges before the F1 community.

"Fota is proud that it has achieved the most substantial measures to reduce costs in the history of our sport.

"In particular, the manufacturer teams have provided assistance to the independent teams, a number of which would probably not be in the sport today without the Fota initiatives.

"The Fota teams have further agreed upon a substantial voluntary cost reduction that provides a sustainable model for the future.

"Following these efforts, all the teams have confirmed to the FIA and the commercial rights holder that they are willing to commit until the end of 2012.

"The FIA and the commercial rights holder have campaigned to divide Fota.

"The wishes of the majority of the teams are ignored. Furthermore, tens of millions of dollars have been withheld from many teams by the commercial rights holder, going back as far as 2006.

"Despite this, and the uncompromising environment, Fota has genuinely sought compromise.

"It has become clear, however, the teams cannot continue to compromise on the fundamental values of the sport and have declined to alter their original conditional entries to the 2010 world championship."

Fota added that its championship would put F1 fans first and boast the best drivers and sponsors.

"This series will have transparent governance, one set of regulations, encourage more entrants and listen to the wishes of the fans, including offering lower prices for spectators worldwide, partners and other important stakeholders," added the statement.

"The major drivers, stars, brands, sponsors, promoters and companies historically associated with the highest level of motorsport will all feature in this new series."

Former champions Williams and Force India have already committed unconditionally to the FIA's world championship along with three new entrants - Campos, US F1 and Manor.

The FIA has said there are other would-be newcomers waiting to take the places of those teams that refused to enter unconditionally, although one, Lola, has already withdrawn its application.

The stage is also set for a legal battle, with the FIA saying champions Ferrari and the two Red Bull teams have existing contracts which commit them to the existing championship.

The FIA had set a Friday deadline for five teams - Brawn, BMW-Sauber, McLaren, Renault and Toyota - to convert their provisional entries into unconditional ones or risk being excluded.

There was no immediate comment from the FIA or Ecclestone.

GREAT BRITAIN | Silverstone

19,20,21 June 2009

FRI Practice 1            10:00    
FRI Practice 2            14:00    
SAT Practice              10:00    
SAT Qualifying          13:00    
SUN Race                  13:00    

Weather update: Though it will be foggy on Thursday, with an ambient temperature high of 17 degrees Celsius, it will brighten for the rest of the weekend. Friday, Saturday and Sunday will each be partly cloudy but dry, with temperature highs respectively of 17, 20 and 19 degrees. The race will run over its usual 60 laps of the 5.141 kilometre (3.194 mile) circuit, or 308.355 kilometres (191.600 miles), and starts at 1300 hours local time, which is an hour ahead of GMT.

Kimi Raikkonen: "There’s always lots of wind at Silverstone and it often rains, even in the summer. The track conditions are changing extremely quickly so that it’s difficult to find the right set up for the car. Usually, when you’re leading in the Championship, you hope for stable weather conditions, but this year it’s different and we try to consider this variable part of the fun of racing in England. For the first time we’re racing at Silverstone without any prior test sessions. The Team prepared some new solutions, which we will test on Friday morning: as never before this year it’s fundamental to exploit the three free practice sessions as much as possible. At Silverstone the performance in the fast corners is very important, where you need a high aero downforce. We hope that the new solutions will help us to improve in an area, which brought us into difficulties in Turkey. As I’ve said several times before we need to be patient: we’re improving thanks to the hard development work, but we’re still not able to fight for a win against the Brawns. I’m extremely confident and I’m convinced that after another couple of races we’ll have closed the gap between the leaders and us. I know that this is what our fans want from us and we’re giving it our all to succeed.

"It will be a difficult British GP: a place on the podium would be a great result. Form me this is really significant track. This was almost the starting point of my international career in the minor Formula series and I always loved to race here. That’s why it’s a bit sad that this should be the last edition of the race, but I have to admit that I also really like Donington: I’ve won there too already…."