Jenson Button maintained a McLaren on top of the timesheets at the Turkish Grand Prix weekend, marginally heading off Red Bull’s Mark Webber for the quickest time Button went quickest in Turkey's second practice session overall in the second free practice session, despite some reliability concerns for both Red Bull cars in the closing minutes of the 90-minute session.

McLaren looked set to maintain its initial superiority at the Istanbul Park circuit, with Button and Lewis Hamilton heading the timesheets after their opening times runs.

Midway through the session, the timesheets were doing their best Noah’s Ark impression, with the two McLarens leading from both Red Bulls, followed by both Mercedes GPs, Renaults, Saubers and Force India cars in the top-12.

As the track surface improved, so the timesheet order finally started to adjust, with Hamilton pulling out a 1:28.672 on a soft-tyre run, which was quickly eclipsed by Vettel’s 1:28.590.

Button would run faster just five minutes later with a 1:28.280, a time that would remain unchallenged for the rest of the day’s proceedings.

Mark Webber – now running without the team’s first iteration of the ‘F-duct’ which he had trialled in the morning’s proceedings – managed to lap quicker than his team-mate to take second place, but his afternoon came to a worrying end with five minutes’ running to go when smoke began to emerge from the back of his Renault-powered RB6 chassis. At the same time as the Australian parked his car, team-mate Vettel was making worrying noises about his climbing water pressure, giving the team a few headaches as they try to cure the reliability gremlins that have chosen to rear their heads this weekend.

Hamilton remained fourth-quickest at the close of the session, with Ferrari’s Fernando Alonso hauling his F10 to fifth overall after a slow start to the session.

Mercedes GP finished sixth and seventh overall, with Nico Rosberg finally out-pacing his team-mate in a practice session for the first time in a little while. The Silver Arrows were trailed by both Renaults and Felipe Massa’s Ferrari.

Turn 8 – the scene of Adrian Sutil’s big shunt in the first session – still seemed to be catching a few drivers out, one of them being three-time Turkish GP winner Massa, who snapped into a wild, slow slide that turned his soft tyres into 50-cent pieces.

Vitantonio Liuzzi also attempted to mirror his team-mate Sutil’s efforts in the morning with his own tail-happy moment at the daunting corner, but somehow managed to find the talent and reflexes to keep his mechanics from having to face a double repair job.

2010 Turkish Grand Prix Practice 2 Session Times:

  Driver   Team Time Laps
1. Jenson Button GBR McLaren Mercedes 1:28.280 30
2. Mark Webber AU Red Bull Renault + 0.098 24
3. Sebastian Vettel DEU Red Bull Renault + 0.310 26
4. Lewis Hamilton GBR McLaren Mercedes + 0.392 32
5. Fernando Alonso ESP Ferrari + 0.445 30
6. Nico Rosberg DEU Mercedes GP + 0.634 22
7. Michael Schumacher DEU Mercedes GP + 0.694 22
8. Robert Kubica POL Renault + 0.945 34
9. Vitaly Petrov RUS Renault + 1.221 36
10. Felipe Massa BRA Ferrari + 1.340 26
11. Adrian Sutil DEU Force India Mercedes + 1.349 16
12. Nico Hülkenberg DEU Williams Cosworth + 1.707 17
13. Kamui Kobayashi JPN Sauber Ferrari + 1.773 34
14. Pedro de la Rosa ESP Sauber Ferrari + 1.896 34
15. Sébastien Buemi SUI Toro Rosso Ferrari + 2.106 32
16. Vitantonio Liuzzi ITA Force India Mercedes + 2.347 28
17. Rubens Barrichello BRA Williams Cosworth + 2.486 32
18. Jaime Alguersuari ESP Toro Rosso Ferrari + 2.653 37
19. Heikki Kovalainen Lotus Cosworth + 3.330 37
20. Lucas di Grassi BRA Virgin Racing Cosworth + 4.733 28
21. Jarno Trulli ITA Lotus Cosworth + 4.801 11
22. Timo Glock DEU Virgin Racing Cosworth + 5.032 29
23. Bruno Senna BRA HRT Cosworth + 5.140 35
24. Karun Chandhok IND HRT Cosworth + 5.460 25

[Original image via GP Update]

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Richard Bailey

Founder & Chief Editor at MotorsportM8
Hasn't missed a Grand Prix since 1989. Has a soft spot for Minardi. Tattooed with 35+ Grand Prix circuits.