This is F1Minute - Sebastian Vettel leads both Friday practice sessions in the US.
It was a tentative and cool start to Free Practice proceedings as drivers tiptoed their way around the super-green tarmac of the brand new Circuit of the Americas. Gradually, the times started to drop and it was a battle between Sebastian Vettel and Lewis Hamilton with the Red Bull driver taking the top spot. Most teams opted to keep both their drivers in the car rather than subbing a Friday driver in, all except HRT who let Ma Qing Hua in the car for the morning session.
Vettel kept up the pace on Friday afternoon topping the second session just as he did the first. He only completed 17 laps, too, with the Red Bull suffering a water leak that kept him in the garage for an hour. Webber was second fastest, with Fernando Alonso slipping into third, and the two McLarens behind the Ferrari.
Meanwhile, HRT have voiced their concerns, after appearing anywhere between 6-10 seconds off the pace, and completing only 68 laps between them all day. Pedro de la Rosa has said he's not confident they will qualify for the race.
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References Circuit of the Americas, Fernando Alonso, Lewis Hamilton, Ma Qing Hua, Pedro de la Rosa
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