It was an easy decision (on tyres) in this last session and you could see what the car could do.
"Michael didn't have a lot of grip, he was on tyres that were very badly grained, so I'm not aware of anything unusual that happened, " added Brawn.
US-based researchers were the first to propose that the wrinkles might act like the tread on tyres, and even demonstrated how the patterns in the skin resembled those of run-off channels seen on the sides of hills.
The team are also puzzled as to why the car is competitive on softer tyres but well off the pace on the harder compound.
Slick, untreaded tyres will also be reintroduced after 11 years on grooved tyres and teams have the option of employing a kinetic energy recovery system.
Slick, untreaded tyres will also be reintroduced after 11 years on grooved tyres, and teams have the option of employing a kinetic energy recovery system (Kers).
No one had tested on wet tyres all weekend so the riders just had to jump on their bikes and ride them.
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"All the race categories I've driven before were on slick tyres, " he said.
They also have the benefit of being on Bridgestone tyres, which are really setting the pace at the moment.
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His time was nearly 2.3 secs adrift of Fernando Alonso, who topped the unofficial timesheets in his Renault, albeit on slick tyres.
As the track dried in the second session, Brawn opted not to put their drivers on intermediate tyres, and while Barrichello just made the cut for the top-10 shootout, Button missed out.
"I just hope that Casey and Jorge are fit and are able to race, because for sure it would be a great battle between us, as our pace on race tyres is very similar, " said Rossi.
Crafar's pole position, fastest lap and race win sweep was astounding not only because it was achieved on Dunlop tyres, who had not won for three years in an era dominated by Michelin, but also because it was Yamaha's first in 23 races.
Todt predicted an "extremely difficult" championship ahead, given the rule changes on engines, tyres and aerodynamics.
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Putting new tyres on the car won't make it perform better if the engine hasn't been fixed.
The McLaren driver was out on the softer tyres but diminishing track temperatures saw him mired down the field.
The outcome will really depend on how the tyres hold out with no race refuelling for the first time since 1993.
Mr Ford's remarks were made before Ford acknowledged that some Firestone tyres on its vehicles were blowing out and killing people.
"We made a mistake not putting intermediate tyres on at the end, but it's a collective decision, it's a team effort, " said the Englishman.
Mobile records also forced Mr Huntley to admit that he had changed the tyres on his car a day after dumping the children's bodies.
The platform for Loeb's win was created on Saturday when the Citroen driver won all six of the day's stages while Gronholm struggled on the wrong tyres.
BBC: SPORT | Motorsport | Rallying | Loeb into lead as Gronholm slips
The crunch of car tyres on gravel, the heavy smell of an imminent thunderstorm, swaying elm trees - random childhood memories of my grandmother's house, Ridgely, in upstate New York.
Raikkonen is caught out during the twisty finish to the lap to end up in third while Alonso struggles on the harder tyres during his last-gasp effort to end up in fourth.
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Renault found themselves outclassed by Ferrari and their Bridgestone tyres on a tough Magny-Cours circuit but Alonso saw his championship lead cut by just two points after making the most of Massa's third stop to claim second place.
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With the track slightly cooler than during the morning's running, Vettel and Webber continued to lead the way, swapping fastest times before Vettel, on super soft tyres, set a target that his Australian team-mate, hampered by traffic, failed to match.
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James Toseland's best finish of the year in seventh came after he changed tyres early on in wet conditions.
Tyres hang on the wall, rusty chains coil around the place and a faint smell of oil permeates the air.
Defective Firestone Wilderness AT tyres installed on previous generation Ford Explorers are believed to be the cause of 203 deaths and over 700 injuries as the result of crashes involving rollovers of Ford Explorer vehicles.
Hamilton followed them home in fourth, slipping backwards in the closing stages on his 'medium' tyres.
Castroneves gambled on low fuel and thinning tyres, and finished the race with just 0.4 of a gallon of fuel remaining.
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