LEWIS Hamilton has finished today s Turkish Grand Prix in 13th place. The seventh round of the FIA Formula 1 World Championship was once again won by Jenson Button for Brawn GP. That made it six victories out of seven for the British driver this season. B

LEWIS Hamilton has finished today's Turkish Grand Prix in 13th place.

The seventh round of the FIA Formula 1 World Championship was once again won by Jenson Button for Brawn GP.

That made it six victories out of seven for the British driver this season.

Button finished ahead of Australian Mark Webber in the Red Bull at Istanbul Park.

Pole-sitter Sebastian Vettel took the third step on the podium, also for Red Bull.

Jarno Trulli was fourth for Toyota with Nico Rosberg fifth for Williams ahead of Ferrari's Felipe Massa.

Meanwhile, Hamilton, the 24-year-old from Tewin, had another frustrating and pointless afternoon behind the wheel in Istanbul.

Starting from 16th on the grid, last season's youngest-ever F1 champion dropped down to 18th in the opening laps.

The Herts-born driver never looked like challenging for a point, which was his pre-race aim.

He was lapped by fellow Brit Button and eventually finished outside the points for the third race in a row.

“I just need to say to the [McLaren] guys back home, keep pushing," said Hamilton afterwards.

"I know this car is not the best and perhaps we won’t be able to win with this one.”

It is the British Grand Prix next on Sunday, June 21.

Hamilton won at Silverstone last season but doesn't have the pace in his McLaren to repeat that historic triumph.