Red Bull Racing's Sebastian Vettel was fastest in opening practice this morning for this weekend's F1 2010 Brazilian Grand Prix at Interlagos.

Vettel set the quickest time, a 1 minute 12.328 seconds, in the final third of the session and that left him almost half a second up on his team-mate, Mark Webber, who was 'best of the rest' in the sister car.

Lewis Hamilton came in third, just 0.035 seconds further back, despite flat spotting one of his tyres with less than 5 minutes of FP1 to run. Jenson Button was also on the pace in the other McLaren MP4-25 and although he couldn't break into the 1m 12s bracket, he did end up fourth on a 1m 13.267s. Both McLaren men were running with various new parts as the Woking-based outfit looks to strike back this weekend.

After the top-four, Robert Kubica came in fifth for Renault, one tenth or so further back, followed by Mercedes man Nico Rosberg and the Williams of Rubens Barrichello, who was the top local driver.

Michael Schumacher completed the top eight, making Barrichello very much the 'meat' in the Mercedes sandwich, ahead of Force India's Adrian Sutil and Sauber's Nick Heidfeld and Kamui Kobayashi. Kobayashi went off at the end of FP1 at turn 7 and crashed into the barriers. Vitaly Petrov also went off at the same place moments before and re-modelled his Renault R30. He ended the session in 15th.

Of the rest Nico Hulkenberg was twelfth just ahead of the Ferraris of Fernando Alonso and Felipe Massa. Alonso, who is the current championship leader, stopped out on track at the end of the session due to engine problems. However the team had planned to change it ahead of FP2 anyway.

Towards the tail-end of the pack, Vitantonio Liuzzi was 16th in his Force India, with Toro Rosso's Jaime Alguersuari and Sebastien Buemi in 17th and 18th respectively, followed by Lotus' Jarno Trulli, who headed the new team drivers on a 1m 15.603s.

Timo Glock, Heikki Kovalainen and Jerome d'Ambrosio filled positions 20 to 22, with the Hispania's of Christian Klien and Bruno Senna slowest, the latter half a second adrift of his 'new' team-mate.

To see the full times from F1 2010 Brazilian Grand Prix - Free Practice 1 at Interlagos: CLICK HERE.