Jun.30 (GMM) F1 veteran David Coulthard has admitted that this weekend's Silverstone race could be his last home British grand prix.

The Red Bull driver, who at 37 is the oldest and second most experienced racer on the grid, may currently be on his fifteenth and last tour of the annual formula one calendar, as he is yet to extend his contract to include 2009.

The Scot told reporters he is not feeling nostalgic about the possible end of his career.

"When that moment comes, there you go. That's the journey of life. You move on to the next thing," he said.

November's Brazilian grand prix will be his 247th race weekend, and among his options for 2009 and beyond could be a punditry role for British television's F1 coverage.

"I am currently a grand prix driver, I have been for many seasons, and I am still sitting here as a grand prix driver because I enjoy it and I get a buzz from it," Coulthard said.

"There will be a point naturally where that is not going to continue, and boo-hoo. There are a lot worse things that can happen to you and you move on to the next challenge."