The seats elevate children and position lap and shoulder belts in the correct position to restrain them during crashes.
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The world champion set pole position with a lap 0.641 seconds faster than second placed Mark Webber of Jaguar.
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.
And seven-time champion Michael Schumacher fell foul of a rule that ensures drivers in the final session must complete every lap within 110% of pole position.
Julian Simon of Aprilia claimed pole position in the 125cc category with a fastest lap of one minute 48.237 seconds.
To be fair to Pic, he had driven a good race until then, moving up behind Petrov on lap 32, at which point they were vying for 13th position.
At the Barcelona circuit, which hosts the Spanish Grand Prix, many cars set lap times in testing this month that were quicker than pole position for the 2012 race.
After coming under pressure from McLaren's Lewis Hamilton at Turn One on the opening lap, Vettel produced a sublime performance to convert his pole position, while Alonso finished seventh and Webber eighth.
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Already she is the first female driver to win the pole position for a NASCAR Sprint Cup race, with a qualifying lap speed of 196.434 mph.
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The Spaniard traded fastest lap times with team-mate Sebastien Buemi in a quiet opening half hour and improved his lap time by over six seconds, but he still finished the session in 20th position, one place behind his team-mate.
When laying it flat on a lap it's fine, but we could never find a good way to hold it in a more upright position.
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