World champion Lewis Hamilton led a day of domination for McLaren at the Hungarian Grand Prix today while Spanish teenager Jaime Alguersuari made a confident Formula One debut with Toro Rosso.

Hamilton was quickest overall with a lap of one minute 22.079 seconds, ahead of last year's winner and team mate Heikki Kovalainen in 1:22.126, in the afternoon. Kovalainen was fastest in the morning in 1:22.278.

With clear skies and temperatures of around 26 Celsius, McLaren's new aerodynamic package immediately looked competitive.

The former champions have yet to get on the podium this season, and last won in October 2008, but that could change this weekend with Hamilton also third fastest in the morning.

"We've refined the improvements we had at the Nuerburgring and they seem to be working, but we've still got a lot of work to do to beat the Red Bulls particularly," said Hamilton.

"Nevertheless, it's encouraging to be able to push the car. I'm happier with it than I've been all season."

ALGUERSUARI DEBUT

Championship leader Jenson Button, who had said on Thursday that there could be no excuses after two disappointing races in colder temperatures, was 10th and 13th in his Brawn.

"We've had a reasonably good day," said Button. "The car feels good, better than the last few races, which is nice.

"There's still some work we need to do, to work with the tyres for consistency, especially the harder tyre, but I'm happy with the way things are going."

All eyes were on 19-year-old Alguersuari, set to become Formula One's youngest ever starter on Sunday.

With some newspaper headlines asking whether the teenager was the most dangerous man in Formula One, having never driven a grand prix car around a circuit for anything more than a demonstration run, he acquitted himself well.

Starting cautiously, he steadily lowered his times before completing more than a race distance on his first day having covered 42 laps in the morning and another 40 after lunch.

He was the slowest in both sessions, with times of 1:24.228 and 1:23.942 respectively, but not by much.

"I know what my target is," he told reporters. "I know that today I didn't make any mistakes and I hope tomorrow I don't and even in the race.

"My target here is to drive the car and not make mistakes. Then we will talk about times and about speed. But I don't feel I am a danger, not really."

Australian Mark Webber, who took his first win in 130 starts at the previous German Grand Prix, was fourth fastest for Red Bull in both sessions. His team mate Sebastian Vettel, second in the championship, was 15th and sixth.

"The car seems to be going okay at the moment," said Webber, who stopped near the end of the second session with an hydraulic problem. "We've got a bit of work to do but in general its been a reasonably positive day."

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